prepared sand 中文意思是什麼

prepared sand 解釋
已混好型砂
  • prepared : adj. 1. 有準備的，準備好的。2. 精製的，特別處理過的。adv. -ly
  • 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. The composite material, which is used to make muller plow of sand mill, is prepared by the method of cast - infiltration and the technology parameters for making composite material is optimized. then the effects of the matrix component on composite layer also are disccused

    通過試驗對利用鑄滲法在鑄件表面獲得一定厚度復合材料層的形成機理進行了理論分析，優選了利用鑄滲法在鑄件表面制備復合材料的工藝參數（澆注溫度、合金膏塊的厚度、澆注位置等） 。
  2. The cushion layer for the dam is constructed with the material prepared mainly with natural sandy gravel and mixed with proper amount of pebble and coarse sand

    大壩墊層料採用以天然砂礫料為主、摻入小石和粗砂以調整級配的方式生產。
  3. In this paper, the so preparing self - compacting concrete with low and middle strength using super fine mountain sand artifical sand and phosphorus slag is studied systemically. through the study the influence of the shape, the proportion of the dust and the grade of sand to the workability and the mechanical property of self - compacting concrete, it is found that super fine mountain sand artifical sand are not suit to prepare low and middle strength self - compacting concrete, but when they are combined and the additive and assistant band material are used, c20 - c40 high performance self - compacting concrete is prepared ; the corresponding additive is developed to solve the delamination caused by the low proportion of banding material ; the evaluating system for the workability of low and middle strength self - compacting concrete is built ; the controlling method for production, construction and curing was set up. and the result of the research is applied into several projects

    通過分析特細山砂和機制砂的顆粒形態、粉末含量、顆粒級配等特性對自密實混凝土的工作性能和力學性能的影響，發現特細山砂、機制砂不宜單獨用於配製中低強度等級自密實混凝土，宜將特細山砂和機制砂進行合理復配，並選擇合適的外加劑和礦物摻合料，優化配合比設計，可生產c20 c40中低強度等級自密實高性能混凝土；研製開發出了具有高效減水、保塑、抗離析功能的外加劑，有效解決了中低強度等級自密實混凝土由於膠凝材料用量少而出現的離析、泌水問題；應用正交設計方法，對因素和水平進行合理選擇，確定了生產中低等級自密實混凝土的最優配合比；建立了中低強度等級自密實混凝土的工作性評價體系；提出了生產、施工及養護的質量控制技術方法。
  4. Secondly, preparation of reactive powder concrete with air quench steel slag and its performance are mainly studied through experiment. the results show that : ( 1 ) when binder - to - sand ratio is 1, silica fume percentage of binder is 15, and steel fiber percentage in volume is 4, reactive powder concrete prepared can get best overall performances

    其次，作者主要對鋼渣活性粉末混凝土配製及其性能進行了試驗研究，結果表明： （ 1 ）膠砂比為1 : 1 ，硅灰摻量為15 ，鋼纖維摻量為4時所配製的活性粉末混凝土的綜合性能比較理想。
  5. By uses of handan raw materials, this paper studies the influence of coarse aggregate limiting grain size, water - binder ratio, fly ash replacement, sand - total aggregate ratio on the strength and workability of concrete prepared with low water - binder ratio

    摘要本試驗採用邯鄲當地的混凝土原材料，利用正交設計方法，試驗研究和分析了粗骨料最大粒徑、水膠比、粉煤灰摻量、砂率對低水膠比混凝土的強度及和易性的影響。
  6. The sodium silicate sand prepared with higher modulus sodium silicate has advantages of low residual strength, short co2 blowing time, high moisture absorption ability and surface stability

    摘要使用較高模數的水玻璃混制的型砂具有殘留強度低、吹co2間短等優點，並有好的抗吸濕性和表而穩定性。
  7. Sand island make sure you ' re prepared to provide cover at any time

    預先做好準備，隨時提供掩護。
  8. Testing on the spot, the muller plow of sand mill, which is prepared by cast - infiltration, is better in the practice and the price can be decreased greatly. so it has a good prospect

    在以上研究的基礎上，採用鑄滲法工藝生產的復合刮板，在現場經運行考核達到了預期效果，且價格低廉，具有明顯的經濟價值。
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