center hole造句怎么写

I first drilled the center hole in both plates in order to index them together.

Pump wear parts are mainly drive shaft and Bushing, passive gear center hole and shaft pin, pump shell lumen and gear, gear face and pump cover, etc.

Simulation results reveal that the performance of perforated plate flowmeter with a larger center hole diameter was superior to that of the perforated plate flowmeter with the equal-aperture holes.

Material: plies of 100% cotton cloth sewed in the form of a spiral around the center hole.

Insert the electric heater assembly into the center hole, and the component ring is upwards.

We put thirty spokes together and call it a wheel; But it is the center hole that makes the wagon move.