求翻译：起重机，在建筑学又称吊车，是由缆索或铁链及滑轮等组件组成的机械装置。它使用一个或多个简单机械原理组合而成，从而移动平常人类力量不足以移动的物件。是什么意思？

Cranes, cranes, in architecture, also known as the mechanism by ropes or chains and pulleys and other components. It uses a combination of one or more simple mechanical principles, in order to move the normal human strength is not enough to move objects.

正在翻译，请等待...

The hoist crane, calls the crane in the architecture, is mechanism which by modules and so on cable or shackle and pulley is composed.It uses or a many simple mechanism combination becomes, thus moves the thing which the ordinary human strength is insufficient to move.

Crane, in architecture also known as crane, is made up of components such as ropes or chains and pulley mechanism. It uses a combination of one or more simple mechanical principles, so as to move items out of normal human strength to move.

正在翻译，请等待...