Definition of non-return in English:

non-return

adjective ˈnɒnrɪtəːnˌnänrəˈtərn

Permitting the flow of air or liquid in one direction only.
单向的
a non-return valve
单向阀。
Example sentencesExamples
- Watering outdoor plants isn't likely to be a high priority on these wet days but if you do use a hose for the garden, or to wash the car, remember to fit a non-return valve on the tap to prevent back-flow.
- Its only moving parts are a spring-loaded ‘clack’ valve and a non-return flap valve.
- A non-return flap is usually fitted to prevent cold air coming in.
- Self-sealing crashworthy fuel tanks have explosion suppression and non-return valves.
- If it is taking in air it means that the non-return valve is leaking and needs to be replaced.

Definition of non-return in US English:

non-return

adjectiveˌnänrəˈtərn

Permitting the flow of air or liquid in one direction only.
单向的
a nonreturn valve
单向阀。
Example sentencesExamples
- Self-sealing crashworthy fuel tanks have explosion suppression and non-return valves.
- A non-return flap is usually fitted to prevent cold air coming in.
- Its only moving parts are a spring-loaded ‘clack’ valve and a non-return flap valve.
- Watering outdoor plants isn't likely to be a high priority on these wet days but if you do use a hose for the garden, or to wash the car, remember to fit a non-return valve on the tap to prevent back-flow.
- If it is taking in air it means that the non-return valve is leaking and needs to be replaced.

词汇	non-return
释义	Definition of non-return in English: non-return adjective ˈnɒnrɪtəːnˌnänrəˈtərn Permitting the flow of air or liquid in one direction only. 单向的 a non-return valve 单向阀。 Example sentencesExamples Watering outdoor plants isn't likely to be a high priority on these wet days but if you do use a hose for the garden, or to wash the car, remember to fit a non-return valve on the tap to prevent back-flow. Its only moving parts are a spring-loaded ‘clack’ valve and a non-return flap valve. A non-return flap is usually fitted to prevent cold air coming in. Self-sealing crashworthy fuel tanks have explosion suppression and non-return valves. If it is taking in air it means that the non-return valve is leaking and needs to be replaced. Definition of non-return in US English: non-return adjectiveˌnänrəˈtərn Permitting the flow of air or liquid in one direction only. 单向的 a nonreturn valve 单向阀。 Example sentencesExamples Self-sealing crashworthy fuel tanks have explosion suppression and non-return valves. A non-return flap is usually fitted to prevent cold air coming in. Its only moving parts are a spring-loaded ‘clack’ valve and a non-return flap valve. Watering outdoor plants isn't likely to be a high priority on these wet days but if you do use a hose for the garden, or to wash the car, remember to fit a non-return valve on the tap to prevent back-flow. If it is taking in air it means that the non-return valve is leaking and needs to be replaced.
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