The results showed that the average molecular weight of methyl hydrogen silicone, amine structure and Si content in amino modified polyether polysiloxanes have some effects on APEPS performance.
结果表明，含氢硅油分子量、有机胺结构、氨基改性聚醚型聚硅氧烷的硅含量对APEPS性能有影响。
Application experiment results show that average molecular weight of staple methyl hydrogen silicone and si content of piperazine modified polyether polysiloxane have effects on PPEPS performance.
结果表明：原料含氢硅油的平均相对分子质量、PPEPS的硅含量对其应用性能有影响。
A methyl group is a basic unit in organic chemistry: one carbon atom attached to three hydrogen atoms.
甲基是有机化学的基本单位：一个碳原子连接三个氢原子。
The active hydrogen in the compound (6) might take negative effect in some reactions and was substituted by a methyl to get compound (7) which was a new chiral guanidine.
化合物(6)上与氮相连的活泼氢原子，可能对某些反应有不利影响，故用碘甲烷对其进行甲基取代，得到了新的手性胍—化合物(7)，并做了表征。
Experimental results show that oxygen in the water comes from the adsorbed oxygen and hydrogen from the methyl and the hydroxyl in methanol.
水中的氧来源于吸附态氧，氢来源于甲醇中的甲基氢和羟基氢且以甲基氢居多。
A term used in petroleum technology to describe a method of removing methyl groups (or other alkyl groups) from a hydrocarbon compound and replacing them with hydrogen.
石油技术所用的一个术语，叙述将烃类化合物的甲基(或其他烷基)脱除下来并代之以氢的方法。
The conversion of methyl propionate and the selectivity to propanol were obviously affected by reaction time, reaction temperature, hydrogen pressure and solvent volume.
反应时间、温度、氢气压力和溶剂体积对丙酸甲酯加氢转化率和目标产物丙醇选择性都有很大的影响。
In addition, in the chemical industry, hydrogen is used to produce ammonia, gasoline, methyl alcohol, and many other important products.
除此之外，在化学工业中，氢被用来制造氨、汽油、甲醇以及其他许多重要产品。
Furthermore, benzylation of methyl-substituted benzene by activation of saturated hydrogen through the use of oxidation or free radical initiation has been developed.
此外，探索通过氧化或者自由基引发，对甲苯类化合物的饱和氢活化进行苄基化反应。
A new process has been developed to synthesize p-aminophenol methyl ether from p-nitrophenol methyl ether by catalytic hydrogenation, using ammonia synthesis gas instead of pure hydrogen.
采用合成氨厂氨合成气代替纯氢气催化氢化邻硝基苯甲醚合成邻氨基苯甲醚的新工艺，探讨了合成反应条件对邻氨基苯甲醚收率的影响规律。
A new process has been developed to synthesize p-aminophenol methyl ether from p-nitrophenol methyl ether by catalytic hydrogenation, using ammonia synthesis gas instead of pure hydrogen.
采用合成氨厂的氨合成气代替纯氢气使脂肪腈加压催化氢化 ，可一步制得双脂肪烃基仲胺。
The main constituents of the waste gas include hydrogen sulfide, ammonia, dimethyl benzene, benzene, methyl benzene, phenol, hydrocarbon, methyl mercaptan, dimethyl sulfide and dimethyl disulfide.
废气主要组成为硫化氢、氨气、二甲苯、苯、甲苯、酚、烃类、甲硫醇、甲硫醚、二甲二硫等。
The main constituents of the waste gas include hydrogen sulfide, ammonia, dimethyl benzene, benzene, methyl benzene, phenol, hydrocarbon, methyl mercaptan, dimethyl sulfide and dimethyl disulfide.
废气主要组成为硫化氢、氨气、二甲苯、苯、甲苯、酚、烃类、甲硫醇、甲硫醚、二甲二硫等。
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