关于起重机的英文资料

起重机：Crane
A crane is a lifting machine equipped with a winder (also called wire rope drum), wire ropes or chains and sheaves that can be used both to lift and lower materials and to move them horizontally. It uses one or more simple machines to create mechanical advantage and thus move loads beyond the normal capability of a human. Cranes are commonly employed in the transport industry for the loading and unloading of freight; in the construction industry for the movement of materials; and in the manufacturing industry for the assembling of heavy equipment.
起重机是一个装备了络纱机（也称钢丝绳鼓)，用钢丝或铁链与滑轮来升降和平移材料的，用来举重物的机器。起重机的优点在于它是由一个或更多的简单机械组成的，因而具有在远超与人力的移动装载能力。 起重机在运输工业常常作为装货和卸载货物的工具; 在建筑业作为运输材料的工具; 并且在制造工业用来聚集重物的设备.

你要的是那方面的资料啊!是起重机的说明书还是技术资料.