head and tail rope haulage是什么意思

用法例句

In recent years a series of technical demands are raised to local coal mine in our country, this paper introduces endless-rope haulage it's basic demands arrangement of conveying system and counting methods are collected it can help local coal mine to select and apply endless- rope haulage.

近年来,国家对地方小煤矿提出了一系列技术改造要求,就无极绳运输的基本要求、运输系统的布置和计算方法予以整理,以帮助广大的地方煤矿合理的选择和使用无极绳绞车。