英语词汇“mine signal system”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	mine signal system
释义	mine signal system mine signal system [′mīn ′sig·nəl ‚sis·təm] (mining engineering) Signal lights installed at individual track switches immediately indicating to the motorman whether or not it is safe to proceed.
随便看	debre-fibiger syndrome debreif debre-marie syndrome debre markos university debre, michel debre-mollaret syndrome debre phenomenon debre, robert debre-semelaigne syndrome debre's syndrome debrett debrett, john debretts peerage debreu, gerard de brevitate vitae debre zeit agricultural research center debride debridement debridements debrief debriefed debriefer debriefers debriefing debriefings

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