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单词
key telephone unit
释义
key telephone unit
key telephone unit
[
′kē ′tel·ə‚fōn ‚yü·nət
]
(communications)
A small mounting plate with relays which performs pickup and hold switching functions in a key telephone system.
Acronyms
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lss-p
lssp
lsspo
lssps
lssr
lssrb
lssrc
lssrcs
lsss
lsssc
lssse
lsssg
lsssw
ls/st
lsst
lsstd
lsstlar
lsstpo
lssu
lssurp
lssv
ls-svm
lssvm
lssw
lsswb
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更新时间:2026/7/6 18:39:39