Professor: Yes, like gold and silver, copper is extremely malleable, but it's not a precious metal, it's far less expensive than gold or silver. 教授:是的,像金和银,铜也是极具延展性的,但它不是一种贵金属,远没有金或银昂贵。 It's also a superb conductor of electricity so you can str...
】 Copper is casy to make. ⑧ These mixtures have good characteristics. ◎ so it is used in a variety of musical instruments. Presently, copper is used in building construction. θ As a result, copper was important to early humans. θWe'd better recycle this metal and save natural ...
有色金属为什么被称为不含铁的金属 | 有色金属nonferrous metal,不含铁的金属。ferrous含铁的,Ferric和Ferrous都是化学术语,用来描述铁的不同价态。Ferric指的是铁的三价状态,而Ferrous指的是铁的二价状态。拉丁语"Ferrum",表示"铁",ferrulen. 套圈;金属箍 ferrite n. [化]铁酸盐,铁素体有色金属之所以被称...
百度试题 结果1 题目Which is a non-metal element? A. Gold B. Silver C. Oxygen D. Copper 相关知识点: 试题来源: 解析 C。Gold(金)、Silver(银)、Copper(铜)都是金属元素,Oxygen(氧)是非金属元素。反馈 收藏
Copper is a pliable metal that is easy to shape and form. Its attractive color, corrosion resistance and high electrical and thermal conductivity mean it is widely used in the electronics, automotive, building, chemical, and food and beverage industries. With increasing purity, the electrical and...
铜a chemical element. Copper is a soft reddish-brown metal used for making electric wires, pipes and coinsa copper mine铜矿copper pipes铜管copper-coloured hair红棕色的头发铜币brown coins that do not have much valueI only paid a few coppers for it.我只花了几个铜板买下这东西。警察...
百度试题 结果1 题目COPPER : METAL::A.garnet : mineralB.granite : plantC.nucleus : cellD.iron : colorantE.paper : consumption 相关知识点: 试题来源: 解析 A 反馈 收藏
sheet-n. a flat, thin piece of material story-n. one level of a building furnace-n. a large oven that is used to manufacture or treat products mill- n. a building where a product is manufactured scrap- n. pieces of a ma...
Copper is an essential metal in the motors, wiring, radiators,connectors, brakes, an d bearings use d in cars an d trucks.The excellent mixing natures of copper have made it priceless when combine d with other metals, such as zinc (to form brass), tin (to form bronze), or nickel. _...
Copper is a reddish-brown metal which occurs free or in ores, such as malachite, cuprite, and chalcopyrite. Copper is a group IB transition element on the periodic table and exists in four oxidation states: Cu0 Cu1+ (cuprous ion), Cu1+ (cupric ion), and Cu3+. In a natural state,...