乙烷

Synthesis of ethylene carbonate from ethylene oxide aqueous solution and carbon dioxide with NY-2 catalyst was studied.

采用自行开发的NY-2催化剂，研究了环氧乙烷水溶液和CO2制备碳酸乙烯酯的反应性能。

The design of an annual output of 50,000 tons of ethylene oxide synthesis of aSection of the design.

本设计对年产5.0万吨环氧乙烷合成工段举行了工艺设计。

And ethylene oxide production methods,production principles,processes and major routes were discussed,such as equipment and computing.

并对环氧乙烷的生产方法、生产原理、流程线路及首要设备等举行了阐述和计算。

As with any ethylene oxide treatment, humidification is necessary.

在使用环氧乙烷灭菌时需要控制湿度。

Typically, however, ethylene oxide does not penetrate the BPC in this powdered form.

典型地，然而，环氧乙烷并不会以粉末的形式渗透到原料药中。

Thus, there could be some ethylene oxide in the nitrogen supply line during the backfilling step.

很明显管路中残留的环氧乙烷会在进行氮气回填的时候进入箱体，这时不可接受的。

Thus, there could be some ethylene oxide in the nitrogen supply line during the backfilling step. Obviously

很明显管路中残留的环氧乙烷会在进行氮气回填的时候进入箱体，这时不可接受的。

Do not add any preservatives, no ethylene oxide, cobalt 60 sterilization, food and more secure.

不添加任何防腐剂，无需环氧乙烷，钴60灭菌，食用更安全。

This series products are compounds polymerized from ethylene oxide as initiating agent and EO.

本系列产品是以乙二醇为起始剂与环氧乙烷聚合制得的化合物。

This article investigates the selective hydrogenation of acetylene/ethylene mixtures over Pd-Ag series catalysts. The influence of important variable of hydrogen/acetylene ratio on the product yield pattern is discussed and cokes deposited on catalyst surface after reactions are analyzed.

本文以钯-银系列之触媒，进行乙炔/乙烯混合物之选择性氢化反应，除探讨氢气／乙炔之比例对於产物中乙烷及绿油组成分布之影响，同时说明触媒表面积碳之主要成份。

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。