In some ways, anhydrous ammonia is just as safe to handle as gasoline.在某种程度上说, 无水氨使用起来与汽油一样安全.Methanol dehydrogenation is a promising route for commercial production of anhydrous formaldehyde.甲醇直接脱氢制无水甲醛是具有工业化前景的新工艺.Anhy...
Anhydrous nitric acid is dissociated.无水硝酸是电离的.In some ways, anhydrous ammonia is just as safe to handle as gasoline.在某种程度上说, 无水氨使用起来与汽油一样安全.The invention relates to a novel method of preparing anhydrous crystalline malti...
a plangent cry凄切动人的哭声Enormous engine is plangent blow airline challenges civilian battalion the bugle of state - owned airline.巨大的引擎轰鸣吹响了民营航空公司挑战 国有 航空公司的号角....plangent violins.哀婉的小提琴声Today's world, a lot of places ...
Colin chuckled at the flattering response.这一奉承的回应让科林暗自发笑。He chuckled at her forthrightness.她的直率让他窃笑。"You look in a bad way," chuckled Brad.“你看起来糟透了，”布拉德笑着说。...
He was frustrated by his inability to wave down a taxi.连一辆出租车都打不到，他很沮丧。When things go wrong, all of us naturally feel disappointed and frustrated.出问题时，我们大家自然都感到失望和沮丧。He often appeared angry and frustrated by the intransi...