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- Keywords brown coal;maceral;liquefying with hydrogen;property;Huolinhe; 褐煤;显微组分;加氢液化;性状;霍林河;
- He was busy filling out the balloon with hydrogen. 他正忙着给汽球充氢气。
- To bleach(hair)with hydrogen peroxide. 用过氧化氢漂白(头发)
- Water formed with hydrogen and oxygen. 水由氢和氧组成.
- To bleach(hair) with hydrogen peroxide. 用过氧化氢漂白(头发)
- liquefying with hydrogen 加氢液化
- Oxygen unites with hydrogen to form water. 氧与氢结合而成水。
- The rings are opened with hydrogen chloride and deuterium chloride. 应用氯化氢和氯化氘打开沅环。
- The addition reaction with hydrogen cyanide is base-catalysed. 与氰氢酸的加成是碱催化的。
- Yet barriers to gassing up cars with hydrogen are significant. 但要真正用氢当做汽车的动力来源,还有很多障碍。
- When you let go a balloon filled with hydrogen it will rise up into the air. 你一撒手,充满氢气的气球就会升上天空。
- The deoxidization effect with hydrogen was superior to that with cyclohexene. 氢气还原活化效果明显优于环己烯还原效果。
- The carbide reacts with hydrogen on the surface to give a methylene. 碳化物与氢在表面反应产生亚甲基。
- Removal of a carboxyl group from a chemical compound,usually with hydrogen replacing it. 脱羧作用从一化合物中脱去羧基,通常是用氢来替换。
- Flush system with hydrogen until required purity is reached. Vent all waste hydrogen through a flue or flare stack. 用氢冲洗设备,直到达到所要求的纯度。通过烟道或火把烟筒排出所有废氢。
- Helium is also lighter than air, but it costs a lot of money. So balloons were (and are) usually filled with hydrogen. 氦也是一种比空气轻的气体,但是它太昂贵,因此气球通常都是装满氢气的。
- She has to wash the affected ear with hydrogen peroxide and then apply some neomycin solution two or three times a day. 她必须用双氧水洗一下被感染的耳朵,然后每天涂两三次新霉素药水。
- Deoxy sugar A SUGAR in which oxygen has been lost by replacement of a hydroxyl group (OH) with hydrogen (H). 脱氧糖:羟基被氢原子置换导致失去氧的一类单糖。
- They were also filled with hydrogen and some of them caught fire bemuse the hydrogen escaped and the engines heated it. 喷气式飞机的速度要比声音的传播速度快(声音一秒钟传播约1100英尺,也就是1小时传播760英里)。
- Micromechanism of the interaction of helium with hydrogen needs further investigation. 氦对氢吸附影响的微观机制尚需进一步研究。