... lift cylinders excess flow protector；提升器油缸防止油量过多的装置 lift demand；提升器要求 lift detent；提升器止动器[闭锁] ...
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检查提升卷扬机减速器，按照要求加注规定油面高度。
Test the lift hoist reducer and pour the oil according to the demands.
由于原料油不断重质化，而且要求轻质油收率不断上升，因此对炼油装置提升管反应器的要求更加苛刻。
As increasing of heavy oil component in raw oil and rising of light oil yield, this result in stricter requirement for lift pipe reactor of oil refining unit.
介绍一种新型可以满足小型矿井提升系统重量要求的防坠器结构设计和工作原理；
To introduce and explain the structure and working method of a new type of fall-proof machine, used in small mine, which meets the weight demand of the hoisting system.
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