查询词典 ethylene

In situ FTIR spectroscopic studies suggest that ethylene dialkoxide(-OCH_2CH_2O-) is an intermediate over polymeric Mo species while ethoxide(-OC_2H_5) might be an intermediate over the monomeric Mo species.

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Ethylene adsorbed on Pd/SiO2 produces ethylidyne and σ and di-π species.

乙烯在Pd/SiO2表面吸附有乙川、di-σ和π吸附态。

Mainly make ethylene, propylene, synthetic ammonia, hydrogen, ethyne, carbon black with gaseous state raw materials under the atmosphere.

液态原料(液化石油气，轻汽油，轻柴油，重柴油)经裂解可制成发展石油化工所需的绝大部分基础原料，是发展石油化工的基础。

But, heat transfer fluids can also be used for cooling strongly exothermal processes, such as occur in the synthesis of ethylene oxide, aniline or formaldehyde.

同时，该导热油也能给需要冷却的工艺路线迅速导出热量，例如应用于EO/苯胺/甲醛等的合成。

With the reduction toward maleness or femaleness of cucumber by treatmentswith exogenous GA3 or ethrel,the endogenous levels of ethylene,ACC,GA1-3,ABAand EFE activity all changed.

利用外源GA3和乙烯利处理黄瓜，使性别表达雄性化或雌性化的同时，其内源乙烯，ACC，GA1-3和脱落酸，以及乙烯形成酶活性均发生了变化。

Ethylene glycol process is a long process, which includes more than ten fractionating columns and fixed-bed catalytic reactor.

乙二醇生产流程是一个包含十几个精馏塔和固定床催化反应器的长流程。

The OH functionality of the polyether may be controlled by using modifiers such as glycidol, ethylene glycol, water or trimethylol propane

用缩水甘油、乙二醇，水或三羟甲基丙烷等改良剂，可控制聚醚的羟基官能团。

The OH functionality of the polyether may be controlled by using modifiers such as glycidol, ethylene glycol, water, or trimethylol propane

可用缩水甘油，乙二醇，水或三羟甲基丙烷等改良剂，可控制聚醚的羟基官能团。

Ketimine, which is prepared by acetone and ethylene diamine or hexamethylene diamine was used as potential chain extender to improve the properties of aqueous polyurethane resin.

用丙酮分别和乙二胺、己二胺反应制备酮亚胺，并以其作为潜伏性扩链剂改善水性聚氨酯的性能。

The isotactic polypropylene obtained with Et3 Al contained ethylene units when the ratio of Al to Ti was 150 at 100℃.However,the isotaetie polypropylenes obtained with i Bu3 Al and Hex3 Al at 100℃ did not contain isobutene and hexene units.

助催化剂为Et3Al聚合得到聚丙烯链结构中含有少量乙烯共聚单元；而助催化剂为Me3Al， i Bu3Al和Hex3Al聚合得到聚丙烯链结构中没有发现共聚单元。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。