查询词典 chloro-hydrocarbons

An important intermidiate 2-butyl-4-chloro-5-(4-bromomethyl phenoxy) pyridazinone 3 was first obtained from 4,5-dichloropyridazinone using two different methods. Compounds 4a～4l were synthesized by the reaction of 3 with different oximes.

从2-叔丁基-4，5-二氯哒嗪酮出发，以两种方法合成了中间体2-叔丁基-4-氯-5-(4-溴甲基苯氧)哒嗪酮(3)。3与肟反应合成了含哒嗪酮的苄基肟醚类化合物4a～4l。

The effects of organic solvent, temperature and water activity were also investigated in PS IM catalyzed tranesterification of 2-chloro-1-phenylethanol with vinyl acetate.

并系统探讨了溶剂体系，温度以及水活度对PS IM催化拆分2-氯-1-苯乙醇的影响。

Chlorinated compounds, such as the chloro fluorocarbons used in refrigeration and air conditioning, also contribute to global warming, as well as damaging the stratospheric ozone that protects us from cancer-causing ultraviolet radiation in sunlight.

氯化化合物，如冰箱和空调中使用的碳氯氟化合物，对全球变暖有影响，也破坏同温层中保护我们免受阳光中致癌紫外线辐射的臭氧

Greenhouse index Net emissions of three major greenhouse gases (carbon dioxide, methane and chloro- fluorocarbons), with each gas weighted according to its heat trapping quality, in carbon dioxide equivalents and expressed in metric tons of carbon per capita.

温室指标指三种主要的温室气体（二氧化碳、甲烷和氟氯烃）的净排放量，每种气体都按其热吸附质能加权，折算成二氧化碳当量，并以人均碳公吨表示。

With the promotion of Lewis acid,these aziridines were readily hydrolyzed to generateα-chloro-phenyl-acetamide.

在Lewis酸的存在下，产物很容易进行水解反应，生成氯代的苯乙酰胺。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。