选择率

通过对模型求解，得到了床层温度、反应选择率和VAC产量等参数在反应器内沿物料流动方向上的分布。

After the equations are solved by computer technique , the parameter profiles such as temperature in the reactor , reaction selectivity , and the VAC yield , along the fluid flowing direction are obtained .

反应的转化率和选择率均可达到98%。

Conversion and selectivity of the reaction both reach 98 % .

催化剂中Cu的担载量是影响催化剂的活性的一个重要因素，在0-4.35%的范围内，伴随着担载量的增加，吲哚的选择率同步增加。

The activity of catalyst depends on the loading amount of Cu .

对多所高校新生UPI调查的筛选率、总分人数分布，自杀意念和主要心理症状的选择率进行了比较；

A comparison of the results of UPI surveys of colleges freshmen is done in the selection rate of class ⅰ students , suicidal tendencies , scores distribution , major psychological problems .

对温度影响氨解反应的对映体选择率的原因进行了分析，通过计算得出该反应的消旋化温度为352K，并山实验所验证。

Through the theory of temperature effects on the E , we got the racemic temperature of this reaction is 352K .

直方图用于计算谓词的选择率。

Histograms are used to calculate the selectivity of the predicates .

合成气合成二甲醚平衡转化率及选择率计算模型

Calculation of equilibrium conversion and selectivity for dimethyl ether synthesis from syngas

空间数据库中距离连接选择率估计方法研究

Research on Distance Join Selectivity Estimation for Spatial Database

一种低复杂度的多参考帧选择率失真优化方法

One Low Complex Reference Picture Selection Optimal Method

选择率估值的准确性对每个执行计划的成本有很大影响。

The correctness of estimating the selectivity highly influences the cost of each execution plan .

优化器可以使用数据分布来计算查询中过滤器的选择率。

The optimizer can use data distributions to calculate selectivity for the filters in a query .

而随着测距误差方差的提高，最佳中继节点的误选择率也逐渐增加。

And the error rate of the best relay node selection increased with the increased variance .

它们的破碎函数不同，且进入破碎子过程的选择率也不同；堆石蠕变机理分析与颗粒破碎特性研究

They are also selected for breakage at different rates . Creep mechanism and breakage behaviour of rockfill

体育组织形式是个人单独和自发组织最多，镇文体站组织的选择率位于倒数第一。

The sports activities are organized individually or spontaneously but the town entertainment center organize the least activities .

当测距误差方差为10-3m时，最佳中继节点的误选择率依然能达到无错的状况。

When the ranging error variance is 10-3 m , the error rate of the best relay selection is nearly zero .

选择率在50%～70%的培养目标中，科研型和临床型硕士研究生分别有13和20项目标被认为是重要的培养目标。

13 items and 20 items were considered as the most important objectives of the two types by 50 % ~ 70 % experts .

但是，如果没有数据分布，则数据库服务器根据表索引计算不同类型的过滤器的选择率。

However , in the absence of data distributions , the database server calculates selectivity for filters of different types based on table indexes .

实验结果证明，该文方法能够准确有效地进行空间距离查询选择率估计并且更加适合真实的数据集。

The experimental results show that the methods are more efficient for spatial distance query selectivity estimation , and especially more applicable to realistic datasets .

菌株确认及药敏试验报告滞后，导致治疗前期的敏感品种选择率偏低。

The delay for the bacteria confirmation and the sensitivity test reports leads to lower for the selection rate of sensitive kinds during the early treatment .

结论：使用腕带的选择率明显高于床头卡，腕带的使用在产科病房值得推广。

Conclusion : The choice of using the wrist strap was significantly higher than bedside cards , wrist straps used in maternity wards are worth promoting .

在4/100选择率下相应的材积增益为48.6%和21.8%；

Giving the selection rate as 4 / 100 , then the genetic gains for combined selection and family selection were 48.6 % and 21.8 % respectively .

按照20%的选择率，早材和晚材的微纤丝角的遗传增益分别为21.82%和29.75%。

The average genetic gains were 21.82 % and 29.75 % for the microfibril angle of earlywood and latewood if 20 % of the best clones was selected .

结果表明：（1）随温度的升高，甲苯与三甲苯的芳烃平衡转化率降低，二甲苯的平衡选择率亦降低；

The results show that as the temperature increases , the equilibrium conversions of toluene and trimethylbenzene decrease , and the equilibrium selectivity of xylene decreases as well .

相反，正常的小鼠则只有1/3的正确选择率，这与从三块板子中随机选一的概率相同。

By contrast , normal mice only chose correctly one third of the time , the score that one would obtain by guessing randomly among the three panels .

随着漆酚树脂的加入，苯酚的产率和选择率都升高，酚产率为67%，酚选择率为86%。

The yield of phenol was 67 % and the selectivity of it was 86 % . It demonstrated that the urushiol resin can obviously catalyze the oxidation reaction .

用该菌催化酯水解时，转化率为41%时，产物的对映体过量值为91%，对映选择率达到45。

When the conversion of substrate reached 41 % , enantiomeric excess of the ( S ) - Ketoprofen produced was 91 % , indicating a high enantiomeric ratio of 45 .

结果在具体分解的57项培养目标选择率在70%以上者，科研型和临床型硕士研究生分别有24和19项被专家认为应作为硕士教育的最基本目标；

Result Among the 57 program objectives , 24 items ( as research type ) and 19 items ( as clinical type ) were considered as the integrant or most important by 70 percent experts .

在心理需求中专业技术职称、定期休假、科室联谊活动、专业培训、护理大本学历、好的上级、融洽的团队7项内容选择率>50%。

The selection rate of technical title of speciality , periodic vacation , activity of section office , speciality training , bachelor of nursing , good leader , placatory team was more than 50 % .

休闲娱乐作为体育锻炼的目的，25～30岁群体选择率最高，达到32.25%。

In the population taking recreation for the intention of physical training , population aged 25-30 had the highest choosing rate of 32.25 % , and population elder than 60 years old had the choosing rate of 31 % .

初孵幼虫对5种寄主植物的取食选择率大小顺序为：苋菜豇豆葱蕹菜菜心，与成虫产卵选择性趋势不同。

The trend of feeding choice of S. exigua first instar larvae was not the same with oviposition choice of female , which was the highest on amaranth , followed by cowpea , shallot , water spinach and flowering stem .