碳、氢、氧化合形成碳水化合物和脂肪。Carbon, hydrogen and oxygen combine chemically to form carbohydrates and fats.5月份工程师们在一条氢燃料管线上发现一条裂隙。In May engineers found a leak in a hydrogen fuel line.氢与氧化合成水。Hydrogen and oxygen combine to form wat...
This paper analyzes the glyceryl polyether by nuclear magnetic resonance ( NMR ) spectroscopy .用 核磁共振 分析了甘油聚醚.The preparation of catalysts , yield of glyceryl triacetate and and demerits the catalysts were introduced bri...
The area has been the scene of fierce fighting for three months.这一地区3个月以来不断发生激战。The fighting has been centred around the town of Vucovar.战斗主要集中在武科瓦尔镇周围。After a good night's sleep I feel fighting fit again.昨夜睡得很香，我又觉...