edge stone

• 磨石

edge stone的用法和样例：

例句

1. He sharpened the edge of his knife on a grindstone.
   他在磨石上磨快了他的刀刃。
2. We suggest sharpening on a wet stone because it cleans the pores of the sharpener dissipates frictional heat and facilitates smooth sharpening action.
   我们建议使用一块弄湿了的磨石，因为研磨液体能帮助清洁磨具上的孔，能散去摩擦产生的热量，还能使磨刀的动作更加顺滑。