他用手指把代用粘土弄软了。
根据实验室试验结果提出，粘土型滑石有可能成为镁质瓷和碱性耐火材料结合剂原料，作为块滑石的廉价代用品。
Experimental test shows that the lutaceous talc may become a new kind of agglomerant of magnesian porcelain and alkaline refractory materials and a cheap substitute of massive talc.
海泡石是一种富镁的纤维状硅酸盐粘土矿物，是近代用途较广泛、应用领域扩展较迅速的矿产之一。
Sepiolite is a fibrous, natural, hydrated magnesium silicate. It is not only an adsorbent but also a catalyst.
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