Study on work efficiency and economy of import large power tractor in sowing work;

本课题以推土机的作业效率最大化为目标，设计了一套推土机作业控制系统。

youdao

A small planter with whole profile modeling is developed in the paper, which is suitable to small power tractor in our country. What's more, its structure is simple and the cost is lower.

本文主要以小型和整体仿形为主进行研究的，这不仅与我国农村以小型拖拉机为主相适应，而且结构简单，成本较低。

youdao

This text made a series of research to Computer Aided Design of Gear box of the tractor power output.

本文对拖拉机动力输出齿轮箱的计算机辅助设计作了一系列研究。

youdao

Nobody wants Caterpillar Tractor and Deere at ten times earnings power because their earnings could fall off the cliff.

FORBES: Market Trends: I'll stick with growth stocks

Graham Nichols, a farmer in Kingscote, near Tetbury, said he had power tools stolen and crops damaged when a neighbour's tractor was taken.

BBC: Tractors worth ?2m stolen from Gloucestershire farms

Solenoid beams have already proven their "tractor beam" abilities in laboratory tests published in the journal Optics Express, but the pulling power of Bessel beams, presented on the preprint server Arxiv in February, remains to be proved experimentally.

BBC: Nasa examines 'tractor beams' for sample gathering