不反应的

SAA ligand Lh could induce asymmetric addition of terminal alkyne to aldehydes without using air-sensitive Ti4and expensive Zn2.with good result of high yield (up to 99%) and good enantioselectivities (up to 84%ee).

将SAA配体Lh应用于在无Ti_4和Zn_2的条件下促进端基炔对醛的不对称加成反应中，反应的收率普遍较高，最高达99%，对映体选择性高达84%ee。

It has been shown that 85% of bromine in the process can be reused without reducing the yield as well as the quality of the product.

结果表明，反应过程中85％的汉可以得到循环利用，且不影响叔丁醇的演化反应的收率和产品质量。

It is concluded that Daniell Cell is thermodynamically irreversible and that criterion of ΔrGm is not equal to that of E.

讨论了Daniell电池的热力学可逆性问题和电化学反应的判据问题，认为Daniell电池是热力学不可逆电池，电化学反应的ΔrGm判据与E判据并不等

We investigated the incidence of perception of and spontaneous verbal and motor responses to insertion of a spinal needle through the dura mater and pia mater and the effect of injecting lidocaine into the epidural space through the epidural needle before inserting the spinal needle through the meninges.

我们调查在穿刺针通过硬脊膜及软脊膜时不适感和不自主的口头及身体反应的发生率，同时调查在置腰麻针前硬膜外注射利多卡因对这些反应的影响。

Where an appropriate action is that which increas es the probability of success, and success is the

智能系统具有在不确定环境中正确反应的能力，正确的反应则增加了成功的几率，从

Examining the reaction mechanism of Co Mo/TiO 2 catalyst and various factors effecting the said reaction,this paper showed that the new type catalyst is noted for its non presulfurizing process and excellent initial activity,unpossessed by traditional Co Mo/Al 2O 3 hydro conversion catalyst in the process of hydrodesulfurization.

讨论了新型Co┐Mo／TiO2加氢转化催化剂的反应机理和影响反应的诸因素，结果表明，新型催化剂与传统Co┐Mo／Al2O3加氢转化催化剂相比具有不预硫化和高初活性的特

Under the optimum reaction conditions,:benzalacetone:Ru:KOH=1000:1:20, 2 MPa, 30℃, and 2h, the conversion and the selectivity toward the unsaturated alcohol was reached 99% and 99%, respectively, and the ee value of unsaturated alcohol was over 58.9%.

在优化的反应条件下，苄叉丙酮加氢反应的转化率大于99％，生成α，β-不饱和醇的选择性大于99％、对映选择性达到了58％ee以上。

In addition, the activties of different catalyst were compered. The test proved the chloroplatinic acid– ethanol catalyst provides high yields of addition products without the formation of undesirable by-products, to provide the possibility of using less rigorous reaction condition, to provide a catalyst material, which is effective at low concentrations.

实验过程中特别对不同催化剂进行了比较，其中氯铂酸—乙醇催化剂提高了加成反应的产率，没有副产物生成，不需要苛刻的反应条件，在低浓度时有很好的催化效果。

Methods The in vitro cultured porcine vascular endothelial cells and human sera were co-reacted to set up an in vitro model of hyperacute rejection of pig-to-human xenotransplantation.

用体外培养的猪血管内皮细胞和不同人的血清共同反应，建立猪与人异种移植超急性排斥反应的体外实验模型。

These reactions increase the probability of incomplete combustions and are more likely to release uncombusted and photochemically active hydrocarbon compounds into the atmosphere.

这些反应增加了不完全燃烧的可能性并且易于放出未燃烧的、易起光化学反应的碳氢化合物释放到大气中。

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％。