选择反应

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。

Once coupled at the filler interface the reactive Y component allows bonding to the polymer matrix by chemical reaction (grafting, addition, substitution) with active groups on the polymer and/or by physicochemical interactions. Y groups are selected to maximize compatibility with particular resin formulations.

一旦在填料界面发生上发生了偶联，反应性部分Y就会通过与聚合物上的活性基团的化学反应或者物理化学作用粘结到聚合物基体上。Y基团可以选择，以优化与特定树脂的相容性。

Ideally, tanks would be receiving a relatively constant stream of damage over time. This allows healers to better plan their healing strategy, broaden their spell options, and simply give more time to react. Tanks could use their cooldowns more reactively.

理想情况是，坦克能在一段时间里受到相对平稳的伤害，这样能让治疗更好地制定治疗计划，给治疗更多的技能选择，也给他们更多的反应时间，坦克也能把保命技能用在更合适的地方。

It is very important for reactor design and control to choose and control the temperature throughout the reaction process.

选择和控制反应过程的温度是反应器设计和控制中的重要问题。

Accordingly, the design of reactor and the selection of reaction conditions were analyzed.

据此分析了如何设计反应器形状以及反应条件的选择。

A system of three-wavelength EDRAW was constructed. Optical data was written into BR film with 670 nm laser based on the B to P photochemistry reaction. Then the information was erased with 490 nm laser based on the reconversion of the photoproduct state P.

根据B到P态的光化学反应过程，利用670nm红光实现信息的写入；采用490nm波长光使P态复原为基态，以擦除所记录的信息；利用B和P态吸收特性的差异，选择594nm波长光实现了信息的读出。

Respectively use chelex 100 resinate,boiling extraction,proteinase K digest/isopropanol precipitation,proteinase K digest/phenol/chloroformextra ction,alkaline lysis,guanidine thiocyanate lysis,guanidine hydrochloride lysis,spin column method to extract Mycobacterium tuberculosis DNA for multiplepolymerase chain eraction.

选择3份含结核分枝杆菌分别为4.325×103、6.857×104、5.356×105 Copies/ml的痰液，分别用Chelex 100树脂法、煮沸法、蛋白酶K消化异丙醇沉淀法、蛋白酶K消化酚/氯仿抽提法、碱裂解法、异硫氰酸胍裂解法、盐酸胍裂解法、离心柱法抽提结核分枝杆菌DNA作多重聚合酶链反应，显色法芯片检测结核分枝杆菌RFP和INH耐药基因。

On the basis of summarizing the current synthesis methods of Polydimethylsiloxane,we have successfully synthesized Polydimethylsiloxane by choosing the process of green solid acid as the synthesis method, Polydimethylsiloxane's synthesization is synthesized with D4 and MM as raw materials by three steps as retractation polymerization and equilibrium with titanium oxide as catalyzer.

我们在考察了目前现有的合成方法的基础上，选择了用绿色固体酸氧化钛做催化剂以八甲基环四硅氧烷(D4)和六甲基二硅氧烷为原料经缩合、聚合、平衡化三步反应来合成二甲基硅油。

In order to obtained the six-membered ring compound and a thorough assignment of the spectra, and further to prove that the six-membered ring compound was formed from the hydrogen transfer, the compound N-butyl-4-(N-methylphenylamino)-5-amino- 1, 8-naphthalimide 6 was designed to obtained with N-butyl-4-bromo-5-amino-1, 8-naphthalimide and N-methyl phenylamine as the starting material. However it was difficult to obtain the desired product as the different solvent giving the different products except the desired product.

为了能够得到六元环化合物作为定标的物质及其确切的谱图分析结果，并且为了进一步证明由五元环产物通过氢转移得到六元环产物的正确性，设计用N-丁基4-溴-5-氨基-1，8-萘酰亚胺与N-甲基苯胺反应生成N-丁基-4--5-氨基-1，8-萘酰亚胺6，结果发现这种方法很难实现，选择不同的溶剂会生成不同的产物，却都不是目标产物。

to choose 60 patients who have hand-foot ringworm with rhagas and toheal them.

选择了60例患有手足癣伴有皲裂的病人，进行了临床疗效，真菌学疗效及不良反应的观察结果。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！