ultra-sand 中文意思是什麼

ultra-sand 解釋
超聲波
  • ultra : adj 過度的，過激的，極端的。n 1 過激論者，極端分子，急進分子，激烈分子。2 〈美口〉高消費顧客，專...
  • sand : n 1 沙。2 〈 pl 〉 沙灘，沙洲，沙地，沙漠。3 〈 pl 〉 沙粒；（計時用的沙漏中的）細沙。4 光陰，時...
  1. Investigation on agglomerate mechanism of quartz sand ultra - fine comminution

    石英砂超細粉碎的團聚機理與抑制方法的研究
  2. The research is to develop a new material - - - - high performance concrete of hill sand on the basis of practice of high strength concrete of hill sand and knowledge of ultra - fine trass additive by using concrete material in guizhou and mixing fly ash. the research result shows that the flowability, moldability, cohesiveness of high performance concrete of hill sand are significant by comparison with ordinary concrete on mechanical properties, long term properties, and durability

    本研究課題是在已成功研製並實際應用的c60高強山砂混凝土的基礎上，結合對微細（超細）活性摻合料性質的理論認識，充分利用貴州當地的混凝土材料，並摻入微細（超細）活性摻合料，研製一種新型的高性能混凝土，即山砂高性能混凝土。
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