氧化合物

Nitric oxide covered in the exhaust gas has become a serious problem of environment, which attracts increasing attention.

排放废气中的氮氧化合物已经成为了一个严重的环境问题，日益引起人们的关注。

The behaviors of extracting gold from alkaline cyanide solution with guanidine and phosphoric-oxygenic compound were studied.

研究了胍与磷氧化合物从碱性氰化液中萃取金的性能，考察了胍、磷酸三丁酯和三丁基氧化膦的浓度对金萃取性能的影响。

Two methods were adopted for thefabrication of manganite planar junctions.

采用两种不同的方法制备锰氧化合物平面隧道结。

Chapter one: At the beginning of this chapter, we reviewed the history of manganite research. And then we laid an emphasis on the discussion of its physical properties-including crystalline structure, magnetic structure, electron structure and electromagnetic behavior, and related interactions in the system. After that we introduced some elementary properties of layered manganites.

第一章 首先简要回顾了超大磁电阻研究的发展历史，然后着重介绍了掺杂锰氧化合物的各种物性——晶体结构、磁结构、电子结构和电磁特性，及相关的各种相互作用，并对层状锰氧化物的基本性质作了简要介绍。

So, it is the focus of catalyst research to eliminate nitric oxide.

因此 ，氮氧化合物的脱除就成了目前催化研究的一个热点。

Sulphur dioxide and nitrogen oxides will mix with water droplets in the air and form acid rain .

二氧化硫和氮氧化合物与大气中的水份结合而成酸雨。

Of NOx in the past several years.

氮氧化合物排放在过去的几年没有出现大的变化。

From optical BINOL, the chiral phosphoryl azide compound was prepared. Its application as chiral auxiliaries in the stereoselective ring-opening of meso-epoxides was examined. No obvious asymmetric induction, however, was observed.

从光学活性的联二萘酚出发合成得到了手性磷叠氮化合物，并将其应用于环氧化合物的不对称开环反应中，考察了它作为手性辅助剂在该反应中的不对称诱导效果。

All these lead to a suggestion of a two step method technical route in which CH 4 and CO 2 can be converted into high value products at low temperature directly.

对近年来 CH4 的低温活化的研究结果进行了评述，结合对 CH4 的两步反应同系化及CO2 加氢研究成果，提出了由 CH4 - CO2 低温转化直接合成 C2 +含氧化合物的两步法技术路线及催化剂体系，论证了其可能性

The obtained activation barrier of β-scission of 1-butene is 217 kJmol^(-1) in the reverse reaction of ethene dimerization.

反应的逆过程也就是1-丁烯在酸性分子筛表面的1-丁基烷氧化合物发生B分裂反应，计算所得相应的l-丁烯B分裂反应的能垒为217kJmol^(-1)，远高于相应的乙烯二聚反应能垒。

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！