Permanent AC servo motor control system of lockstitch sewing machine is introduced.介绍了一种用于电脑全自动工业平缝机的永磁交流伺服电机及其控制系统.This lockstitch cylinder arm machine is mainly used in the production of men's outerwear.这种锁缝筒形横臂机被...
他却是19世纪中期首屈一指的富于热情的雄辩家.He was first and foremost a fiery orator in the 19 th century mold.雄辩家,是以起长篇大论来弥补其皮毛肤浅的.What orator lack In depth they make up for In length.那位拍卖商是一位出生于亚拉巴马州的雄辩家.The auctioneer was a silver - tongu...