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rotten-stone
gen. 擦亮石; 磨石; 抛光石; 硅藻石
rotten stone
tech. 抛光石; 含硅软土; 擦亮石; 蚀余硅质岩; 擦光石; 脆性石灰石; 崩解含沙石; 磨石作擦粉用的硅质石次石
textile 磨石
rotten-stone
: 1 phrase in 1 subject
Technology1