copper 四级六级考研GMAT

Copper is a good conductor of heat.

是热的良导体。

Copper is a good conductor of electricity.

是良导体。

Copper and zinc are fused to make brass.

与锌熔合成黄。

The silver coinage was repeatedly debased with copper vellon.

银币一再用币维隆，实行贬值。

Brass is formed by the fusion of copper and zinc.

黄是通过和锌的熔合而成的。

The students are asked to prove the purity of copper.

要求学生们检验的纯度。

Copper is a good medium for the conduction of heat and electricity.

是热和电的良导体。

When nitric acid is poured on copper, a brown vapor gives off.

将硝酸倒在上, 会散发出一种棕色的蒸气。

Copper is a highly conductive metal.

是极易导（电、热）的金属。

These materials, dubbed cuprates, typically consist of copper oxide layers sandwiched between other substances.

这些称为氧化物（cuprate）的材料，基本上是由其他物质夹著一层氧化。

The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.

用经高温煅烧后的闪锌矿石与稀酸反应制备七水酸锌和五水酸。

But absorbing superabundance copper can lead to copper toxicity, inducing arrhythmia, even renal failure, uraemia, and shock.

但吸收过多可发生中毒，如心律失常，严重时会出现肾功能衰竭、尿毒症、休克等。

Copper wire is flexible.

丝易弯曲。

Copper conducts electricity well.

是电的良导体。

Copper whelped seven puppies.

科珀产下七只小狗。

I'm not a copper's nark.

我不是警方的线人。

The main copper minerals are malachite, chrysocolla, little chalcopyrite, chalcosine and even little bornite and covellite.

矿石主要含矿物为孔雀石、硅孔雀石，少量的黄矿、辉矿及极少量的斑矿和蓝等。

The major ore mineral in the Shijuli copper deposit is chalcopyrite, copperas stone and so on.

石居里矿床矿石中主要矿石矿物由黄矿及黄铁矿等组成。

This article introduces a rapid analysis and adjustment of the copper and ferrum impurities in nickelage solution.

本文主要介绍了镀镍液中杂质、铁的快速分析和调整方法。

For single crystal sliding occurs in two directions, and for bicrystal copper the mechanism of plastic defor...

模拟还发现纳米晶体具有良好的塑性变形自组织能力。