Scavenge box manhole opened, oil sludge removed out and wiped with diesel oil.
扫气箱道门打开，油渣清除并用柴油擦净。
The work for cleaning the scavenge box is a arduous thing, not only because it is weary and dirty, but also spends too much manpower, material and financial resources.
盘根箱、扫气道的清洁工作又脏又累，浪费大量的人力、物力、财力。
The work for cleaning the scavenge box is a arduous thing, not only because it is weary and dirty, but also spends too much manpower, material and financial resources.
盘根箱、扫气道的清洁工作又脏又累，浪费大量的人力、物力、财力。
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