本文研究在正态总体下，铁路装卸笨重货物专用起重机起重量的确定方法。
A method of determining elevating capacity for cranes in loading and unloading railway heavy goods is discussed, considering single loads of consignment of goods as a normal mass.
QZ型-通用桥式起重机，抓斗天车，抓斗行车，抓斗起重机，煤渣抓用起重机，垃圾专用起重机。
QZ type general overhead crane, grab crane for coal cinder handing, garbage handing.
汽车起重机是在通用或专用在载重汽车底盘上装上起重工作装置及设备的起重机，主要采用伸缩式臂架，油缸变幅。
Mobile crane is a general or special the heavy lifting the chassis on the work and equipment, cranes, retractable type mainly adopt the oil tank movement.
造船门式起重机是一种大起重量、大跨度、多功能、高效率的门式起重机械，专用于船坞（或船台）进行大型船体分段运输，对接及翻转作业。
Shipbuilding gantry crane a kind of gantry cranes of large lifting capacity, mare ultifunctions, and high efficiency which is dedicated for large hull staging, butt and flip operations in docks.
自动抓梁是水电站门式起重机的专用取物装置。
Automatic gripping beam is a specialised banging device for gantry cranes used at hydropower stations.
链动滑轮，吊车专用电动滑板，吊车专用手动滑板，悬臂起重机，铁路养路器械。
Chain blocks, crane - use electrical saddles, crane - use manual saddles, jib cranes, railroad maintenance equipment.
铸造起重机是桥式起重机的一种，是冶金厂的专用起重设备。
The foundry crane is the member of bridge crane family and specifically used in the metallurgical plant.
桥式起重机可分为普通桥式起重机、简易粱桥式起重机和冶金专用桥式起重机三种。
Bridge crane bridge crane can be divided into ordinary, simple beam bridge crane and metallurgical three special bridge crane.
桥式起重机可分为普通桥式起重机、简易粱桥式起重机和冶金专用桥式起重机三种。
Bridge crane bridge crane can be divided into ordinary, simple beam bridge crane and metallurgical three special bridge crane.
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