sand ratio中文什么意思

例句与用法

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1. Research on sand ratio of modified asphalt mixture
   对改性沥青混合料中砂率的研究
2. Effect of binder - sand ratio on mechanical properties of steel fiber mortar
   胶砂质量比对钢纤维砂浆力学性能的影响
3. The test results show that the drawing interval of 1 . 5 m is helpful for controlling dead - unconsolidated thin sandstone of coal seam roof and reduce sand ratio of drawn top - coal
   试验结果表明，放煤步距采用三采一放有利于控制顶板极松散细砂岩，降低放出顶煤的含砂率。
4. Under different sand ratio , the relationship between water cement ratio and 28 day compressive strength is researched and the coefficient of recycled concrete is induced
   在不同砂率下,分析了再生混凝土28天龄期抗压强度与水灰比之间的关系,并回归分析得出了再生骨料系数。
5. In order to study the effect of sand ratio ( s / a ratio , fine aggregate volume / total aggregate volume ) on the elastic modulus of self - compacting concrete ( scc ) , concretes with various s / a ratios were cast and tested
   摘要本研究主要探讨混凝土含砂率（ s / a ，细骨材体积/总骨材体积）对流动化混凝土（ scc ）弹性模数的影响。