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单词
contact modulation
释义
contact modulation
contact modulation
[
′kän‚takt ‚mäj·ə′lā·shən
]
(electricity)
The use of a fast-acting relay, whose contacts make and break at a certain threshold current, to generate square waves from a sine-wave, rectified sine-wave or direct-current source.
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更新时间:2025/9/18 0:43:49