swing crane是什么意思

用法例句

The optimization of take-up machine cantilever mechanism based on genetic algorithm;

非织造布卷绕机旋臂机构的生产问题与解决措施

A new type of small rotating arm basin tester,including its design theory,structure and main technical matters,is introduced in this paper.

介绍了自行研制的小型旋臂水池试验台的设计思想、结构形式及其主要技术问题。