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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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csmmc
csm/mca
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csmms
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csmri
csmrs
csmrt
csms
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csmsd
c/smsgt
csmss
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更新时间:2026/1/13 9:56:20