toothed bar

基本解释

The dredge has several hemispheric scoops in place of the toothed bar.
這種撈網用幾個半球狀的鏟子代替了鋸齒橫杆。
It uses an enormous, toothed bar mounted on a device called a dredge to scrape the seabed.
這種方法使用一個安裝在被叫做撈網的裝置上的巨大“釘耙”直接刮過海牀。
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.
雙活塞推動，齒條齒輪傳動，結搆緊湊，裝配位置對稱，動作迅速，通過簡單的活塞顛倒可以改變輸出軸轉曏。