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...
Highwall and Yeti implants have been added to the market.“矿脉”和“雪人”这两个植入体可以在市场中买卖了.Properly designed implants and minimally indie techniques are necessary for long - term success.合理设计的植入物与最小化的植入技术技术对于 长期 的效果极为重要.However, ...
数年前，艾莱的农场就实现了机械化。Mechanization happened years ago on the farms of Islay.不过，他最宝贵的时光将在自己的农场里平静地度过。His most prized time, though, will be spent quietly on his farm.我来到该农场住下纯属偶然。I came to live at the farm by happenstance....