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词汇 magnetron
释义

Definition of magnetron in English:

magnetron

noun ˈmaɡnɪtrɒnˈmæɡnəˌtrɑn
  • An electron tube for amplifying or generating microwaves, with the flow of electrons controlled by an external magnetic field.

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    Example sentencesExamples
    • You remember there had been developed in my laboratory by Randall and Boot, a cavity magnetron which made microwave radar possible and I went to America in connection with the early days of this.
    • Randall had set up the unit on the basis of his wartime reputation, having developed (with Henry Boot) the cavity magnetron, the heart of airborne radar and a crucial element in the Allies' narrow victory in the battle of the Atlantic.
    • Should absorption not take place - if, for example, the oven is activated when empty, some energy will re-enter the waveguide and cause over-heating of the magnetron.
    • In 1940, aided by John Randall and Henry Boot from Birmingham University, Watson-Watt invented the cavity magnetron.
    • Today, magnetrons are used as the source of heat in microwave ovens.

Origin

1920s: from magnetic + -tron from electron.

Definition of magnetron in US English:

magnetron

nounˈmæɡnəˌtrɑnˈmaɡnəˌträn
  • An electron tube for amplifying or generating microwaves, with the flow of electrons controlled by an external magnetic field.

    磁控管

    Example sentencesExamples
    • Today, magnetrons are used as the source of heat in microwave ovens.
    • You remember there had been developed in my laboratory by Randall and Boot, a cavity magnetron which made microwave radar possible and I went to America in connection with the early days of this.
    • Randall had set up the unit on the basis of his wartime reputation, having developed (with Henry Boot) the cavity magnetron, the heart of airborne radar and a crucial element in the Allies' narrow victory in the battle of the Atlantic.
    • In 1940, aided by John Randall and Henry Boot from Birmingham University, Watson-Watt invented the cavity magnetron.
    • Should absorption not take place - if, for example, the oven is activated when empty, some energy will re-enter the waveguide and cause over-heating of the magnetron.

Origin

1920s: from magnetic + -tron from electron.

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