positioning device造句怎么写

2、The workbench positioning device for the woodwork miter saw is simple and convenient in operation during the positioning and locking process of the workbench.

1、The improved device consists of J2135 collision experiment device, drawing table and soleplate, and also adds a mobile board and a L-type positioning device.

3、Red Ultra-light positioning device for printed work can be cut accurately in easy and quickest way.