signalman造句

British Rail had to post a signalman at the entrance to the tunnel.
英国铁路公司不得不在隧道入口设置了一名信号员。

Signalman should coordinate to ensure Safe Lifting Operation with proper signals.
信号员必须确保使用正确的信号,保证起重机动作安全.

The signalman's signature sign is significant to the vacant vacation.
信号员的签字符号对空假期具有重要意义.

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