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C2H4的意思
1、【医】【=ethylene】乙烯
C2H4的双语例句
1、The gas yield increased with the increase of temperature. The low heating value ( LHV) of pyrolysis gas would decrease because of the decomposition of CH4 and C2H4 at high temperatures.
升高热解温度有利于提高热解气的产量，但是高温会使CH4和C2H4裂解，从而造成热解气热值下降。
2、Plants are sensitive to the simple olefins, particularly C2H4.
植物对简单烯烃是敏感的特别是乙烯。
3、Low humidity and C2H4 atmosphere go against the storage and the strawberry decay after 4 days.
低湿度及乙烯气氛不利于草莓的储存，仅4天就开始腐烂。
4、Ethylene ( ethane) A gaseous hydrocarbon ( C2H4), produced in varying amounts by many plants, that functions as a plant HORMONE.
乙烯：是一种气态的碳氢化合物（C2H4），许多植物都可产生。
5、It can fix nitrogen from air, N-fix in g activity reaches 0. 43 nmol C2H4/ vial.
同时培养料疏松，富有弹性。2.能固定空气中氮素，达到瓶小时0.43毫微克分子乙烯。
6、The reaction mechanism of atomic oxygen radical anion ( O-) with ethylene ( C2H4) has been investigated at the G3MP2B3 level of theory.
在G3MP2B3理论水平下研究了氧负离子自由基（O-）与乙烯（C2H4）的反应机理。
7、For the purpose of recovering C2H4 from the vent gas of ethylene oxide ( EO) plant, activated carbon ( AC) selected as absorbent has been studied.
以活性炭为吸附剂，对工业环氧乙烷装置排放气中乙烯的回收进行了研究。
8、C2H4, derived from natural gas and petroleum and used as a source of many organic compounds, in welding and cutting metals, to color citrus fruits, and as an anesthetic.
乙烯一种无色易燃气体，C2H4，可从天然气和石油中获得，用作许多有机化合物的来源，用于焊接和切割金属，柑桔属水果的着色，以及用作麻醉剂。
9、In this paper the carbon K-edge near edge X-ray absorption fine strucure spectra ( NE-XAFS) of adsorption system C2H4/ Ni ( 100) are calculated by multiple-scattering cluster method.
本文用多重散射原子集团方法计算并分析了C2H4/Ni（100）系统的碳K边近边X射线吸收精细结构（NEXAFS）谱，确定了乙烯吸附在Ni（100）表面上的几何结构。
10、The SCC may be due to the superimposition of tensile stresses that take place during bending operation and working process of pure copper pipes, and the faint corrosion environment in CH4+ C2H4 liquid fraction.
分析认为，其原因是弯管加工和运行过程中产生了拉伸应力叠加，以及CH4＋C2H4液体馏份中微量腐蚀介质的联合作用。
11、Direct synthesis of crylic acid from CO2 with C2H4 is important one of the atom-economic reaction, and the technology of photo stimulated surface catalytic reaction ( PSSCR) has been used to this reaction system at first time.
CO2和C2H4直接合成丙烯酸，是重要的原子经济型反应之一。
12、According to the simulations, the contributions to NOX reduction by HCN, C2H4 and char are compared, the reaction ways of HCN, C2H4 and char-N are analyzed in details.
根据计算结果，分析了再燃过程中HCN、C2H4及焦碳氮等重要物质的反应途径，及这些物质对还原NO的贡献。
13、In this paper, on-line monitoring and diagnosis system for traction transformer is designed based on DGA ( dissolved gas-in-oil analysis) technology to realize the online monitoring the traction transformer oil dissolved gas H2 、 CO 、 CH4 、 C2H6 、 C2H4 、 C2H2.
文章基于DGA技术的原理，设计了一套牵引变压器在线监测及故障诊断系统，实现了对牵引变压器油中溶解气体H2、CO、CH4、C2H6、C2H4、C2H2的在线监测。
14、With the lowest barrier heights and the significant transition states lower than the reactant, the dominant channel is a concerted step of involving H shift and C-O bond scission from the adduct C2H5OCN ( IM2) to give out the product C2H4+ HNCO.
考虑到最低的能垒高度和低于反应物的重要的过渡态，反应最主要的通道是从IM2开始涉及氢迁移和C-O键断裂协同步骤生成C2H4+HNCO的通道。
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