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.

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。

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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