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研究了一种蒸养灰砂砖的制备方法。
The preparation method of a kind of steamed lime-sand brick was studied.
youdao
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稻谷灰加入可提高某些掺减水剂的水泥胶砂耐磨性。
The ash of paddy can improve the wearing resistance of some add plastic cement.
youdao
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稻谷灰加入可提高某些掺减水剂的水泥胶砂耐磨性。
The ash of paddy can improve the wearing resistance of some add plastic cement.
youdao