1.
1, 1, 1, 2-tetra fluoro ethane[2] (hfc-134a)
1,1,1,2-四氟乙烷(HFC-134A)
2.
ETO (ethylene oxide)
环氧乙烷，乙烯化氧
3.
Synthesis of Ethylene Glycol Monoether Acetate by One Step Process from Ethylene Oxide
环氧乙烷一步合成乙二醇单烷基醚乙酸酯
4.
ethylene oxide condensate emulsifier
环氧乙烷缩合乳化剂
5.
1,1,1-trichloroethane [methyl chloroform] [C2H3Cl3]
1,1,1－三氯乙烷〔甲基氯仿〕
6.
dibromotetrafluoroethane [halon 2402] [C2F4Br2]
二溴四氟乙烷〔哈龙2402〕
7.
ethylene oxide addition polymer
环氧乙烷加成聚合物
8.
METHODS By this method, iodomethane was replaced with bromoethane.
方法以溴乙烷替代碘甲烷进行烷基化反应。
9.
The gas, which is sulphur-free, contains 89-99% methane, up to 6% ethane, and 3% propane.
天然气不含硫，含甲烷88-99％，乙烷6％和丙烷3％。
10.
The Study on the Catalyst of Direct Oxidation Ethane to Ethylene Oxide
乙烷一步直接制环氧乙烷催化剂的研究
11.
Quantum Chemistry Study on the Reaction of Singlet Alkylidenecarbenes with Oxirane, Thiirane and Methanol;
亚烷基卡宾与环氧乙烷，环硫乙烷及甲醇反应的量子化学研究
12.
A Study of Catalyst for Oxychlorination of Ethylene to EDC with Oxygen
氧气法乙烯氧氯化制二氯乙烷催化剂
13.
Study on the π-Complexation Adsorbents for Ethylene-Ethane Separation;
乙烯—乙烷分离用π络合吸附剂的研究
14.
Simulation of Epoxyethane Production Process by Ethylene Oxidation;
乙烯氧化制环氧乙烷过程的数学模拟
15.
Recover Ethylene (Ethane) by PSA Process: Experiment and Simulation
变压吸附回收乙烯（乙烷）的实验与模拟
16.
The liquids are probably a combination of methane and ethane, given the conditions on Titan and the abundance of methane and ethane gases and clouds in Titan's atmosphere.
按“泰坦”大气中丰富的甲烷和乙烷气体以及“泰坦”上的情形，液体可能是甲烷和乙烷的混合物。
17.
alkylphenol polyglycol ether
烷基聚乙二醇醚（渗透剂）
18.
trimethyl silyl acetate
三甲基甲硅烷乙酸酯