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单词
thermionic valve
释义
thermionic valve
n.
(
US
[
美
]
thermionic tube
)
a device giving a flow of thermionic electrons in one direction, used esp. in the rectification of a current and in radio reception
热离子管,热阴极电子管
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centrefold
centre forward
centre half
centreing
centre line
centremost
centre of attention
centre of flotation
centre of gravity
centre of mass
centrepiece
centre spread
centre stage
-centric
centric
centrical
centricity
centrifugal
centrifugal force
centrifugally
centrifugation
centrifuge
centring
centriole
centripetal
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更新时间:2026/10/10 7:00:29