n.摩擦者，擦菜板
Grater depth is found in a similar manner.
用类似的方法求弹坑的深度.
Its removing coeffi - cient was determined grater than 10~4 under temperature 200℃.
该装置采用两级串接方式,在200℃度下净化因子不低于10~.
How many lemons do you need for the grater?
你需要放多少柠檬进磨碎器?
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