overhead crane的用法和样例：
例句
- Manual Single-beam Crane is configured by crane span structure, cart driving device and manual monorail car and other major parts.
手动单梁起重机系由桥梁，大车传动机构，手动单轨行车等主要部分组成，大车行车及货物起重均用手拉链条驱动。 - If the site is small, it may be commanded by a gantry crane.
假如场地小，则可采用龙门式吊车进行操作。 - One difficulty in every building for heavy industry is the arrangement of the supports for an overhead crane.
重工业的所有厂房均存在一个困难问题，即如何布置桥式吊车的支承结构。
