The main copper minerals are malachite, chrysocolla, little chalcopyrite, chalcosine and even little bornite and covellite. 矿石主要含铜矿物为孔雀石 、 硅孔雀石, 少量的黄铜矿 、 辉铜矿及极少量的斑铜矿和铜蓝等.
目的: 本文研究鹅去氧胆酸 ( CDCA ) 对呼吸系统的影响.Objective: In this paper, antitussive , antiasthmatic and expectorant action of chenodeoxycholine acid ( CDCA ) were studied.目的研究猪去氧胆酸中的杂质成分和纯化方法.OBJECTIVE To investigate the impurities of...
Hers was a minor part, but she played it with gusto.她演的是个小角色，但是演得很投入。Hers is the kind of voice that excels at vocal gymnastics.她的嗓音擅长演绎有难度的歌曲。Nick's head bent slowly over hers until their mouths met.尼克慢慢向她低下头去，直到他们的...
在那个地点又挖掘出几具尸体。More bodies have been dug up at the site.北部又挖掘出了更多的人体遗骸。More human remains have been unearthed in the north.在布里斯托尔附近,这位教授挖掘出一座罗马人的别墅.The professor dug up a Roman villa near Bristol....
It seemed politic to say nothing.沉默似乎是上策。I felt it politic to keep my peace and play the part of the attentive listener.我觉得保持沉默、做一名专心的听众比较明智。'I do it because it's politic; I do it on principle.“ 我那样做是出于策略, 出于原则...