| 释义 | 
		Definition of electron tube in English: electron tubenoun Physics An evacuated or gas-filled tube in which a current of electrons flows between electrodes.  Example sentencesExamples -  A specialized form of the electron tube, the magnetron, is the source of microwave energy in microwave ovens and some radar systems.
 -  For such a large array, an electron tube was chosen instead of a solid-state sensor because the cost per unit area was considerably lower than that of a solid-state detector.
 -  Nuclear material is used in products such as electron tubes, self-luminous watches, or radiation measuring instruments for standardization or calibration purposes.
 -  Electron tubes have been replaced by solid-state devices, such as transistors, for most applications.
 
    Definition of electron tube in US English: electron tubenoun Physics An evacuated or gas-filled tube in which a current of electrons flows between electrodes.  Example sentencesExamples -  A specialized form of the electron tube, the magnetron, is the source of microwave energy in microwave ovens and some radar systems.
 -  Electron tubes have been replaced by solid-state devices, such as transistors, for most applications.
 -  For such a large array, an electron tube was chosen instead of a solid-state sensor because the cost per unit area was considerably lower than that of a solid-state detector.
 -  Nuclear material is used in products such as electron tubes, self-luminous watches, or radiation measuring instruments for standardization or calibration purposes.
 
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