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单词
winding signalling, hoisting signalling
释义
winding signalling, hoisting signalling
提升信号装置; 用作提升机房、井口、井下各水平之间信号联络并具有必要闭锁的装置。
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upset casing
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upset condition
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upset current time
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up set down
upset-duplex system
upsete
upset end
upset end joint
upset exposure mechanism
upset force
upset forging
upset forging die
upset-forging machine
upset forging machine
upset for threading
upset frame
upset,gastro-intestinal
upset head
upset head bolt
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更新时间:2026/7/31 18:06:07