英语语法分析

Firstly, the geometry model of WWB Impulse stepless speed variator is presented.

建立WW B型脉动式无级变速器的几何模型。

Our main products: reducer, gear motor, bevel gear, worm - gear motor, cycloidal reducer and variator.

公司主要产品有：齿轮减速机；蜗轮蜗杆减速机；螺旋伞齿轮减速机；摆线针轮减速机及无级变速器。

The control of walking velocity for traditional combine is realized by gear and hydraulic speed variator.

传统的联合收割机行走速度调节是由驾驶人员通过档位和液压无级变速器来实现。