...不过依据其来源的不同，可将它们分成三大类∶天然砂（natural sand）、加工砂（manufactured sand）及人造砂（artificial sand）等，但仍以硅砂为主，并不只局限于硅砂（silica sand），白，来源包括海滨砂，才是明智之举三。 3.
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rcc artificial sand rcc人工砂
artificial sand-fixed community 人工固沙群落
artificial-sand 人工砂
artificial sand powder 人工砂中的粉末
Artificial sand producing equipment and technology are main factors for controlling the quality and cost of man-made sand.
人工制砂设备和工艺技术是控制人工砂质量和生产成本的关键因素。
The application and the selection of proportion of C60 high performance pumping concrete with artificial sand are introduced in this article.
介绍了C60机制砂高性能泵送混凝土配合比选定及施工应用。
The powder among the artificial sand is not the mud, but it is the fine primary powder produced by exploiting and processing the artificial sand.
人工砂中的粉末不是泥，是在开采加工人工砂时产生的微细原矿粉末。
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