求翻译：静液压传动装置是以液压泵和液压马达为主组成，附加各种变量控制单元和传动元件(减速器或变速箱)，成为一种无级变速的传动装置。是什么意思？

Hydrostatic transmission device is a hydraulic pump and hydraulic motor main components, attach a variety of variable control unit and transmission components (reducer or gearbox), a continuously variable transmission gear.

Hydrostatic drive unit is by means of a hydraulic pump and hydraulic motor-driven, additional variables control unit and drive components (reducer or transmission) and become a hydrostatic drive unit.

The static hydraulic gear is primarily composes by the hydraulic pump and the oil motor, attaches each kind of control of variable unit and the transmission part (reduction gear or gear box), becomes one kind of stepless speed change the transmission device.

Hydrostatic drive unit is formed mainly by hydraulic pumps and hydraulic motors, control unit and drive additional variable component (gearbox or transmission), a continuously variable transmission.

正在翻译，请等待...