grind stone

常見(jiàn)例句

We suggest sharpening on a wet stone because it cleans the pores of the sharpener dissipates frictional heat and facilitates smooth sharpening action.
我們建議使用一塊弄濕了的磨石，因?yàn)檠心ヒ后w能幫助清潔磨具上的孔，能散去摩擦產(chǎn)生的熱量，還能使磨刀的動(dòng)作更加順滑。
In this cavern are three massive stone wheels, each with a huge pole through its centre as an axle.
洞里有三個(gè)巨大的砂輪，每個(gè)砂輪的中心穿過(guò)一個(gè)巨大的桿作為輪的軸心。