The major productive methods of serin are albuminolysis, fermentation method, chemical method and enzymic method.其生产方法主要有蛋白质水解法 、 发酵法 、 化学法和酶法,其中酶法是现在研究丝氨酸制备的重要方法....
他慢慢往前开，发动机低速运转。Very slowly he moved forward, the engine ticking over.一艘登陆艇的发动机还在运转。The engine of one landing craft was still running.用不了5小时，设备就又能嗡嗡地运转了。Within five hours, the equipment will be humming away again....
用茶匙轻敲鸡蛋，让蛋壳开裂。Tap the eggs gently with a teaspoon to crack the shells.他用手杖轻敲着腿。He was tapping his walking stick against his leg.他用指关节轻敲着桌面直到感到疼痛为止.He rapped the tabletop with his knuckles until they were sore....
Objective To investigate the non - alkaloid constituent of Hippeastrun vittatum ( Amaryllidaceae ).目的研究 石蒜 科植物 花朱顶红中非生物碱类成分.I am a private collector of Amaryllidaceae.我是一名收藏石蒜的私人收藏家.Molecular Cloning of a Novel Mannose -...
希钦斯先生说您破过一些非常离奇的案子。Mr. Hitchens said you have solved some very unusual cases.《迷幻演出》无疑是有史以来最离奇的电影之一。"Performance" is undoubtedly one of the most surreal movies ever made.他称之为人生中最离奇的不幸经历。He called it the most grotesquely t...