乙烷

Performance of the catalyst in oxidative coupling of m ethane and oxidative dehydrogenation of ethane at low temperature was studied.

采用沉淀法制备了纳米La2O3催化剂，并考察了该催化剂对甲烷氧化偶联和乙烷氧化脱氢反应的催化性能。

The results indicate that ethane molecules near the wall ...

模拟结果还表明，除壁面附近外，即使是在 180K的较低温度下，乙烷分子的排列也是混乱和无序的。

72 As more and more ethane and propane are extracted form natural gas, the control of the But or heating content of gas becomes mere important.

答案：随着越来越多的乙烷和丙烷从天然气中分离出来，对天然气的加热温度的控制也越来越重要。

In the case of ethane, then , there exist three conformational isomers or conformers, which are degenerate because they are congruent , have the same energy, and are, in all respects, indistinguishable.

在乙烷的话，那么，我们有三种异构体或构构，这是堕落，因为他们是一致的，具有相同的能量，并在所有方面，没有什么区别。

For ethane, the critical pressure is 707.8 psia.

乙烷的临界压力为707.8磅/平方英寸。

If polar conditions are as cool as predictions say, ethane could accumulate as polar ice.

如果两极的状况如同预报的足够冷，乙烷将作为极地冰堆积起来。

BA110 ethane pyrolysis furnace is an important equipment of ethylene plant.

BA110乙烷裂解炉是乙烯装置的重要设备。

This thesis compares the deviation factor of methane, ethane and CO2, which are calculated with empirical formula.

为此从计算偏差因子经验公式入手，对比了甲烷、乙烷、CO2纯气体的偏差因子。

Ethanolamines are commonly made by the method of reacting aqueous ammonia and ethylene oxide. Product profile, product quality and energy consumption are three key factors in ethanolamine process.

环氧乙烷氨解法是目前生产乙醇胺的主要方法，产品比例、产品质量及能耗是乙醇胺生产中的三个关键因素。

The partial oxidation of ethane to ethene and hydrocarbon oxygenates is one of the most difficult processes in partial oxidation of alkanes.

乙烷选择氧化制乙烯或烃类氧化物是烷烃选择氧化研究的热点之一，也是难点之一。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。