磁耦合离心泵的全新设计: a completely new design for mag-drive centrifugal pumps
寸: Ⅰ量词(长度单位) cun, a unit of length (=1/3 decimetre)Ⅱ形容词(极短或极小) very little; very short; small 短语和例子寸功 small contribution; meagre achievement; 寸进 a little progressⅢ名词(姓氏) a surname 短语和例子寸居敬 cu
