A hydraulic variable speed drive system of shield disk cutter has been designed.

设计了盾构刀盘变转速液压驱动系统。

youdao

The performance of AC variable speed drive system has been improved greatly since field-oriented control is applied.

矢量控制使交流调速系统的性能产生了质的飞跃。

youdao

This paper deals with the theoretic design process, methods and procedures of machine tools' step speed drive system.

阐述了机床有级变速传动系统的理论设计过程与设计方法，简要介绍了其设计步骤。

youdao

The mighty 12 is backed up by an eight-speed transmission and Audi's Quattro all-wheel drive system (with electrically locking front and rear differentials, no less).

WSJ: Audi A8 L W12 Exclusive: Luxury Can Be Lonely

Its no-contact drive system uses an advanced low-noise motor and geared belt to ensure control over speed while filtering out vibration.

FORBES: EAR Disc Master Turntable