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单词
oxide-coated cathode
释义
oxide-coated cathode
oxide-coated cathode
[
′äk‚sīd ‚kōd·əd ′kath‚ōd
]
(electronics)
A cathode that has been coated with oxides of alkaline-earth metals to improve electron emission at moderate temperatures. Also known as Wehnelt cathode.
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off-the-peg
off the pigs
off the rack
off-the-rack
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off the radar
off-the-rail
off the rails
off the record
off-the-record
off the reel
off the reservation
off the road
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off-the-road hauling
off-the-road radial tire
off the run
off-the-run
off the run issue
off-the-run issue
off the run issues
off-the-run issues
off the run treasuries
off-the-run treasuries
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更新时间:2026/9/10 9:56:34