In iron-removal from china stone,it has obtained satisfactory results with highyield of refined china clay and its product has reached the standards of Grade 1 china stone。 用该机进行瓷石除铁，效果令人满意。精泥产率高，质量达到一级瓷石产品的要求。
This area once produced tin and copper and china clay, but all you can see of the mines now are now abandoned shells.
这个地区曾经出产锡、铜和瓷土，但现在你能看到的矿山现在都是废弃的贝壳。
近义、反义、联想词
近义词
n.
clay
英英词典
china clay n.
a fine usually white clay formed by the weathering of aluminous minerals (as feldspar); used in ceramics and as an absorbent and as a filler (e.g., in paper)
synonymous： china stone, kaolin, kaoline, porcelain clay, terra alba