“belt roller”可以造什么句，belt roller造句

The specific method is the belt roller group to which side, which side of the belt toward the direction of forward or backward on the other side.

Studies question of machining large belt roller under locate condition, analyzes adjusting technics of roller distortion, designs and adjusting of machining large belt roller under overstep machine tool, and machining technics, and puts forward concrete machining plan.