1An instrument or device used for observing, checking, or keeping a continuous record of a process or quantity.

心脏监护仪。

1. 1.1 A person operating a monitor.
   监控器（或监听器、监视器）操作员
   Example sentencesExamples

   • The machine monitor who has worked for the company for nearly 39 years said the news was a shock.
2. 1.2 A person who observes a process or activity to check that it is carried out fairly or correctly, especially in an official capacity.
   （尤指官方）监督员
   the independent judicial monitor

   独立司法监督员。

   Example sentencesExamples

   • The insurance company might allow an independent monitor to scrutinise the demutualisation process on behalf of policyholders.
   • They have asked for the hundreds of independent monitors to be allowed inside polling stations, a request approved by the judiciary but rejected by the electoral commission.
   • When the tribunals begin, foreign experts can act as observers and monitors.
   • A court-appointed monitor has been overseeing operations under a deferred-prosecution deal.
   • It appeared to be in line with some previously published estimates by independent monitors.
   • To add to the saturation coverage, a number of independent civil rights monitors will observe events.
   • Like all players in the electoral process, monitors must also abide by the rules and regulations of the game.
   • They are asking for election monitors and observers to be sent to Gamelonia, of course all expenses to be borne by us.
   • He reiterated the country's stand that the country should observe UN resolutions and allow the arms monitors in for inspection.
   • I headed over in his direction as a monitor scolded Ty to sit down.
   • The task at hand now for international peace monitors is ensuring that the process gets back on track.
   • Paper ballots can be switched, and that is the purpose of having observers and monitors who witness the physical tallying.
   • The certified factories must agree to unannounced inspections by accredited, independent monitors.
   • One approach would be to have independent monitors undertake multifaceted analysis of a firm's pro bono practice.
   • So this time around, city officials hope election monitors will pronounce the process glitch-free.
   • ‘There might be international observers but not monitors, and they will have no role in supervising elections,’ Sorour added.
   • The education board sent monitors to schools to make sure that the ceremonies are conducted according to protocol.
   • Under the agreement reached last year, the software giant was to appoint an independent monitor to check it was complying with the EC demands.
   • Independent monitors will calculate the scores and the top-scoring driver will represent Ireland at the Grand final in Sweden on September 16 and 17.
   • And Pittsburgh education officials recently began placing independent monitors in each school after several cheating incidents.

   Synonyms

   observer, watchdog, overseer, invigilator, supervisor
3. 1.3 A person who listens to and reports on foreign radio broadcasts and signals.
   （对外国无线电广播和信号等的）监听员
   Example sentencesExamples

   • Intelligence monitors are picking up less terror threat talk than a year ago, the Homeland Security Secretary said Thursday.
4. 1.4US A raised section of roof running down the center of a railroad car, building, etc., providing light or ventilation; a clerestory.
   Example sentencesExamples

   • The atrium is paved in pale limestone and spanned by four west-facing light monitors above.
   • A roof monitor admits north light, and a large window and porch offer quiet views to the wooded hillside.
   • Libraries are ideal building types for the extensive use of roof monitors because of the common one- or two-story configuration of the floor plan.

2A television receiver used in a studio to select or verify the picture being broadcast from a particular camera.

1. 2.1 A screen which displays an image generated by a computer.
   （电脑）显示器；显示屏
   Example sentencesExamples

   • If they use a flat-screen monitor, they can raise or lower the apparatus that holds it.
   • A 17-inch flat screen monitor that displays distortion-free images with a high degree of clarity makes the home theatre system complete.
   • Computer monitors generally have a refresh rate of at least 60 Hz, meaning the screen is refreshed at least 60 times a second.
   • The commander looked at the monitor showing vital information about the pilots, cargo and condition of the tubes.
   • Is the cable from the monitor connected to the computer's video card connector?
   • Alone at his desk, the detective glances up at the black login screen displayed on the computer monitor.
   • If you have a mouse with a scroll wheel you can change the size of fonts and images displayed on your monitor screen with a single click.
   • The big monitor in the center was all black, except for some green text splashed across the screen.
   • Intraoperative magnetic resonance images are displayed on monitors within the gap.
   • All over the room, men sat stationed at their monitors, reporting the status of the enemy compounds to their officers.
   • He had just purchased a new computer with a touch screen monitor, and he needed help installing the software.
   • I once called the computer store where I bought my computer because my monitor was not working.
   • The robust demand is expected to continue into this year on rising shipments of laptop computers, LCD monitors and LCD TVs, Hsieh said.
   • The radar operator was watching carefully as the blip on his monitor representing the Renegade crawled into the system.
   • You are staring at the your monitor waiting for the image to download.
   • After the video is scaled it is changed into a digital format recognized by the video card and then it is displayed on your monitor.
   • Flat-panel screens found their biggest niche in laptops, but now they're replacing desktop monitors and even television sets.
   • Within seconds, vital operational data can be displayed on the large wall display screens or individual computer monitors.
   • The race is on at home and in the office to replace large and heavy boat anchor PCs and their monitors with notebook computers.
   • The semiconductor devices can be used in things such as TV screens, computer monitors, medical imaging and digital cameras.

   Synonyms

   screen, vdu, visual display unit
2. 2.2 A loudspeaker, especially one used by performers on stage to hear themselves or in the studio to hear what has been recorded.
   监听喇叭（尤指舞台演员用来听自己话音或录音室用来听录好内容的喇叭）
   Example sentencesExamples

   • The musician's stage contains no wedge monitors and very few microphones.
   • The 896HD's outputs fed both the quad mix to the house and the in-ear monitors used for the stage.
   • A few minutes later, he found himself in the wings of the stage, with one of their sound guys, Marv, hooking up his microphone and ear monitors.
   • It's harder to hear through the monitors, and you tend to sing louder, and it's more direct, for sure.
   • The Gryphon Trio also uses techniques well outside conventional chamber music, employing a click track that the musicians can hear from their in-the-ear monitors.
   • Loud stage monitors can make the situation worse, because there's a constant slap delay when their sound bounces off of the back wall and heads back into the house.
   • The band listens on wedge monitors, but Brown uses a Shure PSM600 ear monitor in one ear.
   • She doesn't even explain whether the black armband she's sporting is a mark of respect or an electronic doohickey for her earpiece monitor.

3A student with disciplinary or other special duties during school hours.

4A large tropical Old World lizard with a long neck, narrow head, forked tongue, strong claws, and a short body. Monitors were formerly believed to give warning of crocodiles.

Family Varanidae and genus Varanus: many species. See also Komodo dragon

5historical A shallow-draft armored warship mounting one or two heavy guns for bombardment.

1Observe and check the progress or quality of (something) over a period of time; keep under systematic review.

安装了设备以监测空气质量。

1. 1.1 Maintain regular surveillance over.
   监视；监控
   it was easy for the enemy to monitor his movements

   他是个做事有规律的人，敌人很容易监视他的行踪。

   Example sentencesExamples

   • Architectural elements control pedestrian access, and surveillance cameras monitor people as they approach the area.
   • In the adjacent corner, a small, elevated closed-circuit camera monitored their every move.
   • For 15 years the company used hidden cameras to monitor its 3,000 employees at its Granite City, Illinois steel mill.
   • The officer recalled a surveillance operation when detectives monitored them in a house in the Carndonagh area.
   • The door is electronically locked and monitored by both surveillance cameras and employees.
   • May the government use electronic surveillance to monitor the movements and information use of suspected terrorists?
   • The cars, which will be monitored by police and cameras, will be parked in locations around Burnley and left with property on show in a bid to attract thieves.
   • For example, a video camera continuously monitors everything that transpires, whereas surveillance by wiretap will only be triggered when someone speaks.
   • Eighteen surveillance cameras monitor the house and are observed continuously by a director or producer nearby.
   • This place had to be monitored by security cameras, he told himself, but he hadn't the time to be concerned about it.
   • The academy monitored her every action on her laptop and her user name would always reveal exactly who she was.
   • He insists that Jani was kept in a sealed-off room under constant video surveillance and closely monitored.
   • The cops were of course present, along with undercover men in the crowd and surveillance equipment monitoring our every move.
   • He added that some local people were keeping the plant under surveillance and monitoring movements in and out of the plant.
   • Thousands of police, army troops and security men stood on guard in and around the Grand Mosque as surveillance cameras monitored the crowds.
   • For our own security, advanced surveillance aircraft can monitor the movement of bypassed enemy army units.
   • The councillor has successfully lobbied for £25,000 for cameras to monitor the Eldene Centre, another area targeted by vandals.
   • The diagram he drew of the surveillance equipment that monitored him was excellent.
   • A further bid for European funding, which would enable the area to be monitored by CCTV cameras, is also being considered.
   • The £10,000 contribution will cover half of the cost of a new CCTV camera to monitor the Twickenham Riverside area.

   Synonyms

   vigil, guard, watch, monitoring, policing, beat, beat-pounding, patrolling, round, sentry duty

   keep guard, keep guard on, guard, keep watch, keep watch on
2. 1.2 Listen to and report on (a foreign radio broadcast or a telephone conversation).
   （对外国无线电广播和信号等的）监听员
   Example sentencesExamples

   • Word on the street has it that email, internet access, and telephone calls are being monitored closely.
   • One of the recon teams had a radio intercept operator monitoring enemy transmissions as the battle went on.
   • Telephonic communications of the German Army had been monitored and reported to the Allies by the French Resistance.
   • In March 1944, he became a liaison to the Australian Government to monitor and evaluate Japanese broadcasts.
   • The act also stipulates that it must not be possible for a person to detect that his or her conversation is being monitored by the respective government agency.
   • Then, suddenly remembering that their conversation was being monitored, he turned a bit red.
   • The Europol document says the use of telephones - land lines and mobiles - will be monitored.
   • Their conversations were recorded and in many cases monitored in real time.
   • The threat of a reprisal strike was broadcast by the country's state-run radio, and monitored in Beijing.
   • During this time, my home telephone was being monitored.
   • Corporate spies could also use an inexpensive scanner radio to monitor the conversation.
   • The report from Pyongyang was monitored in Tokyo by Kyodo News.
   • Some employers will monitor telephone conversations.
   • Their communications - via telephone, email, fax - are monitored and disrupted.
   • Telephone conversations would be monitored during the gag period, it said.
   • He was monitoring the mob's wiretapped conversations through contacts he had in government.
   • What you're about to here is a conversation that my government monitored.
   • The report, monitored by the wire service, could not immediately be confirmed.
   • There were no further details in the KCNA report, monitored in Beijing.
   • Each wiretap request must specify a particular telephone number or location to be monitored.

   Synonyms

   listen in, spy, intrude
3. 1.3 Check or regulate the technical quality of (a radio transmission or television signal).
   监控（无线电或电视传输信号）
   Example sentencesExamples

   • Sennheiser HD600 headphones were used to monitor the DV40 while on location.
   • To specifically monitor the fluorescence signal, we placed a bandpass filter centered at 580 nm in front of the optical detector.
   • The sound team sit in the same truck as the director, monitoring the presenter's and guest's sound levels
   • The negative peak was observed only if the PA signal had been monitored at low, and not high, frequencies.
   • Anania says integration was important in metro area networking because transmissions need to be monitored at each node.