The reason for this is that the property of clay mineral is changed, and the non-clayproduct, most of which is silica, is formed in the process of clay with acid.
实验表明，这是由于酸土反应后，粘土的矿物本性发生了变化，生成了主要成分为石英的“非土”物质。
2
The product consisted of kiln dried clay, and its intended use was as a non-flammable, industrial absorbent.
这种产品由窑炉中干燥的泥土组成，最初是作为不可燃的工业吸收剂来使用的。
3
The surface quality of Y2 frame and the percentage of end product can not be compatible, because the toughness and mobility of the moulding sand in clay sand are antagonistic each other.