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.
电源操作
就是看护发动机，确保发动机运行完好和水泵有效抽水。
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.
电源操作就是看护发动机，确保发动机运行完好和水泵有效抽水。
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