toothed bar

基本解释

The dredge has several hemispheric scoops in place of the toothed bar.
这种捞网用几个半球状的铲子代替了锯齿横杆。
It uses an enormous, toothed bar mounted on a device called a dredge to scrape the seabed.
这种方法使用一个安装在被叫做捞网的装置上的巨大“钉耙”直接刮过海床。
Dual-piston driven. toothed bar and gear driven, structure is compact, position of assembly is symmetrical. Motion is swift. turning of output axis can be changed through simple reversal of piston.
双活塞推动，齿条齿轮传动，结构紧凑，装配位置对称，动作迅速，通过简单的活塞颠倒可以改变输出轴转向。