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单词
pilot tone
释义
pilot tone
pilot tone
[
′pī·lət ‚tōn
]
(communications)
Single frequency transmitted over a channel to operate an alarm or automatic control.
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set something aside
set something aside for
set (something) at rest
set (something) back
set something back
set something back from
set something before
set something by
set (something) down
set something down
set (something) down in black and white
set something down in black and white
set (something) down in writing
set something down in writing
set (something) down to (something)
set something down to something
set something for
set (something) for (something)
set (something) forth
set something forth
set something forth on
set something forward
set something free
set something in
set (something) in cement
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更新时间：2025/3/20 15:15:04