luffing造句

It consists of feeder hopper, outlet hopper, discharge chute and luffing mechanism.
由进料斗、出料斗、排料槽及变幅机构构成.

It changes working radius usually by luffing jib.
通常多采用俯仰臂架的方法来实现工作幅度的改变.

A - type quayside container crane with jib - bridge luffing system as the main working part is brought out.
提出一种以臂桥架变幅系统为主要工作机构的岸边集装箱起重机.