The reeling out of the drilling line is powered by gravity and reeling in by an electric motor or diesel engine.
松开钢丝绳是依靠重力的作用，而缠绕钢丝绳则是借助于电马达或柴油机。
This paper analyzes the common fuel line malfunctions of diesel engine and gives the removal methods.
本文对柴油发动机油路的常见故障进行了分析，并提出了排除的方法。
The frame characteristics of R175 mini diesel engine crankshaft and process design program of the production line are introduced.
介绍了R 175小型柴油机曲轴的结构特点及生产线的工艺设计流程。
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