leavers machine是什么意思

用法例句

Introduced a new kind of costume mechatronic product that is ultrasonic lace sewing machine,and particularly discussed its principle of work,composing of the whole machine and the design features of main parts.

介绍一种新型服装机电产品超声波花边机,着重讨论其工作原理、整机组成及各部分设计特点。