研究了用酸性乙腈硫酸铜体系从辉铜矿中提取铜.Leaching of copper from chalcocite with acidic acetonitrilecopper sulphate system was studied.除自然铜和孔雀石之外, 还有黄铜矿 、 斑铜矿 、 辉铜矿 、 铜蓝和黝铜矿等.In addition to the natural copper and malachite, there are chalc...
Plumbers charge by the hour for their work.水管工人的工作是以小时收费的.Plumbers caulk joints in pipe with lead, string or a caulking compound.管子工用铅 、 绳子或专用填隙材料使管子的接头不漏水.Later skilled workers such as electricians and plumbers organize...
门的上方刻有拉丁文铭“人非万能”。Above its doors was a Latin inscription: Non omnia possumus omnes.每个开着门的办公室门口都有官员们三五成群在兴奋地交谈。Officials were clustered at every open office door, talking excitedly.警员戴克敲了敲韦布的门，在推开门的同时，闪到了一旁。PC Dacre knock...
Care and diligence bring luck.谨慎和勤奋，带来好运气。Diligence combined with natural ability earned him commendations from superiors.勤奋加上天赋,使他受到了上司们的好评.Diligence redeems stupidity.勤能补拙。We should cultivate the good habits of diligen...
Some of the younger men began to pelt one another with snowballs.一些年轻人开始相互投掷雪球。The children pelted him with snowballs.孩子们向他投掷雪球。Sabina tried to get him to throw snowballs with her.莎宾娜想让他和她扔雪球玩....
很多巨蟹座男人对母亲有着依恋的情感.Many men Cancer is the mother of emotional attachment.我很喜欢阳光,甚至是依恋的,我总是喜欢可以晒到阳光的窗台,喜欢有阳光味道的被子.I love sunshine the feeling when it's down on me and the smell of it....