master drive meaning in Chinese

主传动
主激励

Secondary master drive
第二主驱动器
Primary master drive
第一主驱动器
He then took the great - coat with the large collar , which the groom had left behind in the tilbury , and put it on his back ; then he took off cavalcanti s hat , which he placed upon his own head , and finally he assumed the careless attitude of a servant whose master drives himself
说着他便拿起马夫忘在车里的那件高领大短挂，披在自己身上，然后又摘下卡瓦尔康蒂的帽子，戴在自己头上，最后装出一副满不在乎的样子，就象一个由他的主人自己驱车的仆人。