乙烯的

Canada is rich in natural resources, for ammonia, urea, methanol and ethylene production.

加拿大有丰富的天然气资源，用于合成氨、尿素、甲醇和乙烯的生产。

That is to say, the biosynthesis of lycopene depend on ethylene.

番茄红素的生物合成是依赖于乙烯的。

According to this construction, ethylene is predicted to have an H-C-H bond angle of 120°, the measured angle of 117.5°being reasonably close to this value.

按照这种结构，预计乙烯的键角为120°，测得的键角是117.5°，相当接近与该值。

The ethene's production and trade which must be over 600 thousands tons every year and a ten-thousand-ton berth for the project.

年产60万吨及以上规模乙烯的生产、贸易及相配套的万吨级以上深水泊位一座，项目总投资8亿美元以上。

Based on density functional theory calculation with periodic boundary conditions, the possibility of the direct coupling of methanol into ethene by oxonium ylide mechanism was investigated.

采用基于周期性边界条件的密度泛函理论研究了HSAPO-34分子筛上甲醇通过氧鎓叶立德机理直接耦合生成乙烯的可能性。

It is important to know how ethylene is synthesized and how the signal is transduced.

所以了解乙烯的生物合成及其信号转导是非常重要的。

The production of ethylene takes an important role in petrochemical industry.

在石油化工行业中，乙烯的生产占有极其重要的位置。

Ethylene production and its function are of important in the study of cut flower senescence.

乙烯的生成及其作用是切花衰老研究中十分重要的内容。

The inherence vices of PTFE limit it's application as anti-corrosion coating in the engineering field.

聚四氟乙烯的一些固有缺陷，限制了其作为防腐蚀涂层在化工领域中的应用。

Because of excessie wear and tissue reaction, polytetrafluoroethylene was replaced by high-density polyethylene and later by ultrahigh molecular weight polyethylene.

由于聚四氟乙烯的磨损和组织反应严重，因而被高密度聚乙烯以及后来的超高分子聚乙烯所取代。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。