查询词典 selectivity

The conversion of acetic acid and the selectivity of propylene reached 85.43% and 98.52%, respectively.

本文还对乙酸与丙烯直接酯化合成乙酸异丙酯的动力学进行了研究。

Copper pyrophosphate was proved to be the best catalyst, over which a conversion of 58.6% and a selectivity of ~100% were obtained.

分别合成了磷酸铜，焦磷酸铜和三聚磷酸铜，并应用在环己烷选择氧化反应中发现，焦磷酸铜催化剂得到最理想的结果，转化率为58.6%的同时得到了～100%醇酮的选择性。

Element Sc shows a obvious selectivity that it is enriched in pyroxene, and depleted in melilite and spinel.

这些元素的富集系数大多数小于1、元素Sc显示出在辉石中富集，在黄〓石、尖晶石中贫化的明显的选择性。

This method is simple and has high selectivity for the determination of pyruvate in the fermentation broth and its product.

该法具有准确度高、重现性好、简便快速等特点，适合于生产过程发酵液中丙酮酸及其盐类的测定。

Special attention was directed toward finding inhibitors selective against KDR tyrosine kinase in order to ensure that the in vivo profile of a specific Src inhibitor could be determined. The 4-aminobenzodioxole quinazoline series gave compounds with excellent potency and selectivity.

一直以来，人们为了确保能够在体内测定Src酶专属性抑制剂的特性，把研究焦点放在对KDR酪氨酸激酶选择性的抑制剂的寻找上。4-氨基苯并间二氧五环喹唑啉系列化合物具有极好的效力和选择性。

Meanwhile, the index futures hedge theory has also get a further development, which evolves from traditional hedge theory, the selectivity hedge theory and modern hedge theories. After analyzing the merits and shortcomings of the three theories, the paper mainly studies four minimum square hedge theory models, which are The traditional static OLS model, VECM model, one variable GARCH(1, 1) model and one variable GJR-GARCH(1, 1, 1) model. Established on September 8th in 2006, China Financial Futures Exchange initiated a new era of our country finance ramification-- index futures, opening a door for the China futures industry.

而股指期货的套期保值理论也随之得到长足发展，历经传统套期保值理论、选择性套期保值理论和现代套期保值理论，本文在分析三大理论优缺点的同时，着重研究现代套期保值理论即最小方差避险理论的四种模型：传统静态OLS模型、VECM模型、单变量GARCH(1，1)模型、单变量GJR—GARCH(1，1，1)模型。2006年9月8日，中国金融期货交易所的成立，掀开了我国金融衍生品种股指期货的新纪元，迎来了中国期货行业发展的机遇期。

Shape-controlled platinum nanocrystals are attracting more and more attention in recent years due to the high selectivity and reactivity.

形状控制的铂纳米晶由于具有高的选择性和催化活性，近年来受到越来越多的关注。

The method is simple with good reproducibility and selectivity, and high sensitivity.

该方法具有操作简单、灵敏度高和重现性好等优点。

The method has the advantages of high sensitivity, less interference and good selectivity and reproducibility.

方法的灵敏度好，其准确度与精密度更好的满足银锌电池研制工作的要求。

In addition, good reproducibility, high selectivity and stability can be achieved.

此外，该传感器重现性好，灵敏度高，性能稳定，再生性强。4。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。