copper 四级六级考研GMAT高考

The electrician wound the copper wire into a tight coil.

电工把线紧紧缠成一个线圈。

She gently stirs the simmering soup in a copper pot.

她轻轻搅动锅里沸腾的汤。

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，基上是由其他物质夹著一层氧化。

The students are asked to prove the purity of copper.

要求学生们检验的纯度。

Copper is a good conductor of heat.

是热的良导体。

The silver coinage was repeatedly debased with copper vellon.

银币一再用币维隆来替代，实行贬值。

Brass is formed by the fusion of copper and zinc.

黄是通过和的熔合而成的。

Copper and zinc are fused to make brass.

熔合成黄。

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。

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

用经高温煅烧后的闪矿石稀硫酸反应制备七水硫酸和五水硫酸。

Copper is a good conductor of electricity.

是良导体。

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

是热和电的良导体。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸、硫酸亚锡、络合剂、稳定剂等组成的溶液中,可以置换镀覆不同锡质量分数的- 锡合金镀层,其工艺可替代氰化物预镀,消除氰化物污染,是实现电镀清洁生产措施之一。

The capacitive sensor consisted of two mutual insul ating copper and foil electrodes,clinging to the external w all of infusion bottle with two insulating stretch tight balteum.

电容式液位检测传感器主要由两条相互绝缘的箔电极构成,由两条绝缘弹性锁紧带将带状传感器紧贴在输液瓶外壁,传感器药液不接触,对药液性能不会产生影响。

The dial shall be made of copper aluminum alloy, inalterable black numerals and graduation on white background. The manufacture of same will be to applicable standards.

仪表的刻度盘应为机械指针式，应选用铝合金材质，底色为白色，上面标的数字和刻度为黑色（不易褪色），刻度分配应采用厂家提供的标准。

We study the affection for the spectrophotometric method determination of sodium copper chlorophyllin in ratafee of all kinds of coefficiant of variation and obtain valuable results.

研究各种操作条件对分光光度法测定果酒中叶绿素钠的影响,得到了较有价值的结论。

Nonbiodegradable pollutants, such as certain chlorinated hydrocarbon pesticides (e.g.DDT) and heavy metals, such as lead, copper, and zinc in some industrial effluents, accumulate in the environment.

生物不可降解的污染，如氯代烃类杀虫剂（如DDT）和工业废水中的重金属，如铅、和，在环境中积累。

The content of the available ferrum enhanced by recycled straws, but that of the available zincum, copper and manganese had no changed obviously in soil.

秸秆直接还田提高了土壤的有效铁含量,但对有效、有效和有效锰含量影响不大。

Copper conductive adhesives were prepared using epoxy as matrix, the mixture of m-phenylenediamine and diaminodiphenylmethane as hardener, and copper particles as the conducting filler.

以环氧树脂为基体,间苯二胺和二氨基二苯甲烷的低融点混合物为固化剂,粉为导电填料,制备了热固化各向同性导电胶。

Soil geochemical measurement of one ten-thousandth scale indicates that the anomalies of gold, stiver, copper, lead have features of high intensity and well-lapped forms.

1万土壤地球化学测量表明矿区金、银、、铅、等元素具有强度大，套叠好的特点。