The duty of the plugman was to watch the engine and to see that it kept well in work, and that the pumps were efficient in drawing the water.

电源的责任就是看护发动机，确保发动机运行完好和水泵有效抽水。

Each depalletizer is equipped with an approved overhead reflective surface (stainless foil) that is clean and so positioned as to permit operator to view inside surface of every container on bed.

卸垛机上方装有认可的反光镜（不锈钢薄片），该反光镜清洁且安装的位置正好能使从镜面上看清各个容器的底部。

A pumping-engine was erected there by Robert Hawthorn, now the Duke's engineer at Walbottle ;and old Stephenson went to work it as fireman, his son George acting as the engineman or plugman.

罗伯特·霍桑当时在瓦堡特尔已被公爵提升为，在纽布恩煤矿搭建了水泵机，老罗伯特·斯蒂芬森担任司炉，的儿子乔治当了一名机械或电源。