The hoisting machine can work normally, the brake should be reliable.
提升卷扬机应能正常工作，制动器应工作可靠。
The coal mine main hoisting system couldn t safe work with the vibration of the derrick (especially in starting or stopping) .
煤矿主提升系统由于井塔的振动，无法满足安全生产的要求（尤其是在启动、停车阶段）。
It can greatly improve the efficiency of mine hoisting, and the work environment, reduce the energy consumption and raise the enterprise benefit and management level.
该系统的应用将极大地提高矿山提升的工作效率，改善工人的工作环境，降低能源消耗，提高企业效益和管理水平。
Work principles of travel, braking, steering, lifting and swinging of mast, hoisting and cooling hydraulic circuits are all illustrated.
给出了行走、制动、转向、门架升降与摇摆、吊具，以及冷却液压回路的工作原理图。
The concerned work in this paper will benefit to future research on hoisting electric controlling system based on PLC technology.
本文对今后基于PLC的矿井提升电控系统的应用研究有一定的借鉴作用。
The concerned work in this paper will benefit to future research on hoisting electric controlling system based on PLC technology.
本文对今后基于PLC的矿井提升电控系统的应用研究有一定的借鉴作用。
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