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- The result of experiment shows that the hardness will increase and the plating rate will decrease with the rising of concentration ratio of nickel sulfate and hypophosphite. 最后的试验结果表明,在其它条件不变的情况下,随着镍磷摩尔浓度比的增大,镀层硬度逐渐上升,而镀速逐渐下降;
- His area of concentration is nuclear physics. 他的专门研究范围是原子物理学。
- The drug affects one's power(s) of concentration. 这种药影响人精神不能集中。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- Automatic control of dilution and mixture ratio of concentrated beer is one of the key techniques of beer dilution. 高浓度啤酒稀释混合配比自动控制系统是啤酒稀释的关键技术之一。
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- Stress and tiredness often result in a lack of concentration. 紧张和疲劳常使人精神不集中。
- Variations of structure parameters of hydrocyclone affecting production,ratio of diffluence,ratio of concentrate of hydrocyclone were studied comprehensively in this paper. 本文对水力旋流器结构参数变化对其处理能力、分流比、浓缩倍数等影响作了全面的试验研究。
- The results showed that giving fine crashed forage, increasing the ratio of concentrate in diet, adding proper additive in feed all decrease the methane emission of ruminant. 结果表明，给动物饲喂细碎的牧草、增加日粮中的精料比例、饲料中添加适当的添加剂均可减少反刍动物的甲烷排放量。
- The ratio of men to women was two to one. 男女的比例是二比一。
- An exam demands a high level of concentration. 考试时需要全神贯注。
- The drug may affect your powers of concentration. 这种药可能会影响你的注意力集中。
- For example, the listed Western Mining is the only domestic listed enterprise with a self-sufficiency ratio of concentrate over 100%, which is of strategic importance to upgrade its stock valuation. 如上市公司西部矿业是国内唯一一家精矿自给率超过100%25的矿业上市企业，而这一点对其股票的估值的拉升起到了重要作用。
- This book requires a great deal of concentration. 这本书需要全神贯注才能读懂。
- The ratios of 1 to 5 and 20 to 100 are the same. 1与5之比和20与100之比相同。
- He is a boy with little power of concentration. 他是个注意不易集中的男孩。
- The strike is the ultima ratio of Trade Unionism. 罢工是工联主义的最后手段。
- He has great powers of concentration. 他注意力很集中。
- His area of concentration is economics. 他专心研究经济学。
