查询词典 sampling fraction

The results indicate that the fraction of pearlite in the ductile iron matrix increase with increase of copper and the decrease of silicon in this investigation.

研究表明，在试验范围内，随着铜含量增加和硅含量减少，球铁基体中的珠光体数量增多。

A hydrogenation catalyst contained Co-Mo-Ni active component was used for preparation of pentane with the raffinate of 5-carbon fraction from steam cracking as the raw material.

对活性成分为Co-Mo-Ni的LY-9702加氢催化剂催化蒸汽裂解抽余C5馏分(含60％左右的C5烯烃)制戊烷的工艺条件进行了试验研究。

For ternary system of formic acid-water-pentyl formate, the average absolute deviations of predictions for vapor-phase mole fraction of water and pentyl formate are 0.0292 and 0.0273, respectively, and for the equilibrium temperature is 0.94℃.

由关联得到的三对二元NRTL模型参数预测部分三元体系汽液平衡数据，计算值与实验值基本吻合。

Vivo test showed that ACE inhibition activity of this fraction was still 49.52% after pepsin and pencreatin treatment.

体外模拟实验测定结果表明：经过胃肠道酶的作用，大豆肽的ACE抑制活性仍达到49.52%。

The GDP per capita in china constitutes only a small fraction of the average of the developed countries.

所有中国的大学加起来所产出的高质量专业人才也只占据了美国培养人才的一小部分。

That is how China bought a whole mountain in Peru for a fraction of the world price.

这就是中国如何以较少的世界价格买下了秘鲁的一整座山。

It indicated that the allelopathic substances were mainly in the petroleum ether fraction.

结果表明，克生活性物质主要集中在石油醚相中。

The phase boundary is almost the same with that for the strong hyperon-hyperon interaction at low pressure and small strangeness fraction.

与强的超子相互作用下的奇异强子物质汽液相变相比，在压强较低和奇异分数较小时相界基本一致。

In addition,phosphocreatine cound increase left ventricular ejection fraction,promote heart function,increase blood flow of coronary and improve circulation of coronary.

此外，磷酸肌酸还可以提高左室射血分数，改善心功能，增加冠状动脉流量，改善冠状动脉循环。

A large fraction of the cathodoluminescent can be directed through the untextured front surface of the crystal.An improvement in phosphor efficiency by a factor of 2.3 has been achieved.

在详细分析了这种理想发光模型之后，采用晶体的各向异性腐蚀工艺形成了具有近似这种结构的网状刻面屏，外发光效率提高到原来的2.3倍。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。