Silver - coated carbonyl iron powder was prepared by using electroless plating method.用化学镀法,甲醛为还原剂,制备镀银羰基铁粉.The p - chlorophenyl isocyanate is synthesised by carbonyl chloride and p - chloroaniline . The yield is 90 %.采用...
He urged everyone to act responsibly.他敦促大家做事要有责任心。The report said that the doctor had acted very responsibly.报告说医生的诊治是很负责的.They are emotionally mature and should behave responsibly.他们在情感上已经成熟，应该负责任地行事。...
这首交响曲确实需要为数不少的一组演奏者。The symphony does require a largish group of players.莫里斯在1978年创作了由12幅画组成的一组作品。Morris executed a suite of twelve drawings in 1978.他们用吊索把我们从高处的一组吊臂上放到低处的另一组吊臂上。They used slings of rope to lower us from ...
她太累了，而且无比悲伤，没法谈论那场悲剧。She was too exhausted and distressed to talk about the tragedy.那笔钱带来的只有伤心、痛苦和悲剧。All that money brought nothing but sadness and misery and tragedy.这是一长串悲剧事件中最新的一件。It's the latest in a long line o...