signalman造句

British Rail had to post a signalman at the entrance to the tunnel.
英國鐵路公司不得不在隧道入口設(shè)置了一名信號員。

Signalman should coordinate to ensure Safe Lifting Operation with proper signals.
信號員必須確保使用正確的信號,保證起重機(jī)動作安全.

The signalman's signature sign is significant to the vacant vacation.
信號員的簽字符號對空假期具有重要意義.

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