Zhè zhǒng módāoqì fēn cū mó hé jīng mó liǎng ge kǒu.
This kind of sharpener has two slots: coarse and fine sharpening.
Tips
usage
磨刀器 is the small countertop pull-through sharpener. The traditional whetstone you have to use with technique is 磨刀石 (módāoshí). 磨 here is mó (to grind), not mò.