volum造句

• Firstly , the dissertation gives an elaborate discourse on inflence on asphalt matrix with variation of fiber and mineral filler content . subsequently the inflence on volum index with the change of aggregate graduation is analysed . moreover , by means of indoor and road test of sma mixture , road performance of sma is discussed
  通过变化纤维用量和矿粉用量研究了其对沥青玛蹄脂性质的影响，分析了矿料级配对体积指标的影响，并通过试验分析研究了其各自对混合料的低温和高温路用性能的影响，最后初步确定了适合甘肃省气候特点的sma混合料级配。
• Secondly the cellulase liquid as the raw material were extracted by the aqueous two - phase . the influences of molecular weight of peg , concentrations of peg and salt , ph value , the phase volum ratio etc , the extraction rate and the partition coefficients were studied . the optimum condition was also determined
  其次以纤维素酶液为原料，用双水相萃取技术提取纤维素酶，考察了不同分子量的高聚物聚乙二醇peg和其质量浓度、其盐浓度、 ph值、相比等对萃取率和分配系数的影响，确定出双水相萃取纤维素酶的最佳工艺条件。