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- ethyl sulfuric acia 乙基代硫酸
- Sulfur can be used to make gunpowder. 硫磺可以用来制造火药。
- ethyl sulfuric acid 乙基硫酸
- Hematoma compression and tracheomal acia etc. 血肿压迫、气管软化等是甲状腺手术并发急性呼吸道梗阻常见原因。
- Most sulfuric acid is made by the contact process. 大多数的硫酸是用接触法制造的。
- To introduce the ethyl group into(a compound). 使乙基化把乙基引入(一化合物)
- Iron and steel with too much sulfur are red-short. 含硫过多的铁和钢都是热脆性的。
- Ethyl lactate was synthesized by transesterification of D, L-lactide with ethanol utilizing concentrated sulfuric acid as catalyst. 研究了D,L-丙交酯在浓硫酸催化作用下,与乙醇进行酯交换反应合成乳酸乙酯。
- Acids used in pickling can include sulfuric. 酸浸渍中用的酸有硫酸。
- A volatile,highly flammable liquid,C2H5OC2H5,derived from the distillation of ethyl alcohol with sulfuric acid and widely used as a reagent,a solvent,and an anesthetic. 乙烯一种易挥发的,极易燃烧的液体C2H5OC2H5,由乙醇与硫酸一起蒸馏获得,广泛用作试剂、溶剂和麻醉剂。
- Sulfur is an essential nutrient for plants. 硫是植物的一种重要的营养元素。
- To eliminate sulfur from(petroleum, for example). 脱硫(例如,从石油中)除硫
- A volatile, highly flammable liquid, C2H5OC2H5, derived from the distillation of ethyl alcohol with sulfuric acid and widely used as a reagent, a solvent, and an anesthetic. 乙烯一种易挥发的,极易燃烧的液体C2H5OC2H5,由乙醇与硫酸一起蒸馏获得,广泛用作试剂、溶剂和麻醉剂
- The unionized sulfur species is ??in water. 溶于水中非电离形式的硫即?妗?/UK>
- Isn't sulfur important in chlorophyll formation? 硫对叶绿素的形成很重要,对吗?
- Ethyl acetate(71. 41b)was added to the slurry in the vessel. 把醋酸乙酯71.;4磅加到容器中的浆液内。
- A sulfide compound containing at least two sulfur atoms per molecule. 多硫化物每个分子中至少含有两个硫原子的一种硫化物
- There was the smell of sulfur, like burning tires. 那味道闻起来像是硫磺,像是燃烧的轮胎一样。
- Ethyl lactate was synthesized with sodium bisulfate. 采用硫酸氢钠为催化剂合成乳酸乙酯。
- Control sulfur levels in FCC products. 控制流化催化裂化生产中硫的排放。