查询词典 ethene

Dust particles are investigated in the dissertation are created in situ in RF discharge of mixture reactive gases of silane and ethene.

本文所研究的尘埃颗粒是利用等离子体增强化学反应法原位生成的。

SiC thin films of large area were prepared successfully in a plasma-enchanced CVD reactor at room temperature, with silane and ethene used as raw materials and Ar as carrier gas.

采用射频等离子体增强的气相沉积法，以硅烷和乙烯为原料，在常温下成功的合成了碳化硅薄膜。

The trace gas concentration was measured by the above method, for example,1～70 parts per million by volume of hydrogen, or acetylene or ethene, or 50～550 parts per million of carbon monoxide.

计算结果表明，单一网络的泛化能力较强，但识别准确度在某些值处达不到实用的要求。

Ethene can be chemisorbed on the Lewis acid sites Fe〓 by the C=C double bond.

乙烯分子可通过C=C双键吸附在催化剂表面的Lewis酸位Fe〓上。

Properly selected reaction temperature can suppress the secondary reactions and enhance the production of propene and ethene.

以MCM-49分子筛为催化剂，纯1-丁烯为原料，考察了反应温度对烯烃催化裂解制丙烯、乙烯反应性能的影响。

Catalytic cracking process for production of propylene and ethene from 1-butene was investigated using MCM-49 zeolite.

以MCM-49分子筛为催化剂，纯1-丁烯为原料，考察了反应温度对烯烃催化裂解制丙烯、乙烯反应性能的影响。

Based on a sample study of PDCA circle application for improving naphtha, an important raw material of ethene factory,this paper given detail explanation on how to apply TQM.

质量管理工作在我国已推行 2 0多年，取得显著成就，并指出了进行全面质量管理所采用的基本方法即 PDCA循环。

Source assessments for six receptor sites indicated that ethene chemistry industries and motored vehichles were the most important sources of NMHCs in the city, and non-point sources are difficult to control.

通过对6个受体点的源解析，结果表明乙烯化工工业点源和流动源为该地区NMHCs人为源的控制重点，面源是控制难点。

Results showed that the main component of F I is l,2-bis(5-methyl-2 -benzoxazol)-ethene.

最后，利用细胞培养技术对Fl进行抗肿瘤活性和免疫调节活性的研究。

Results showed that: there were best range of the amount of solicitation reagent,the amount of polyethylene glycol, the length of the polyoxydation ethene side chain and the best time temperature and of the esteri.

通过确定不同的引发剂用量、聚乙二醇投入量、聚氧化乙烯侧链长度以及酯化反应的温度和时间，对所合成的新型聚羧酸系外加剂的性能进行比较。

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。