但是，他们在不同的收缩率，从而使黑色铜氧化物片赶走。
But they shrink at different rates, which makes the black cupric oxide flake off.
由于铜冷却，它缩小。黑色铜氧化物也缩小。但是，他们在不同的收缩率，从而使黑色铜氧化物片赶走。
As the copper cools, it shrinks. The black cupric oxide also shrinks. But they shrink at different rates, which makes the black cupric oxide flake off.
同台展出的还有伦敦黑色出租车的吉利版本，一款吉利与英国锰铜控股合资生产的车型，该英国公司拥有伦敦出租车国际。
Also on the stand was Geely's version of the London black cab, the product of a joint venture with Manganese Bronze Holdings, the British company that owns London Taxi International.
在橱门上和墙上我们挂上了有框的水果肖像，一个古董面包板，和一个旧的调色板等等。我们甚至把冰箱涂成了黑色，然后用铜沟边。
We have added framed fruit, a vintage breadboard, an old paint palette, etc. etc. to the doors and walls and even painted the fridge black, edged in bronze.
在一些反应中颜色会发生变化，它表明产生了新的物质，例如，绿色的碳酸铜在加热时会分解为黑色的氧化铜和二氧化碳气体。
In several reactions a colour change indicates the formation of new products. For example, green copper carbonate reacts, when heated, to form black copper oxide and carbon dioxide gas.
脸罩部分：脸罩被涂成亮黑色和铜灰色相间的样子。
Face mask: The face mask is painted in an alternating pattern of gloss black and gun metal grey.
对铜铸件施以彩绘装饰是始于秦朝时期的新工艺。以白色为底色，配以红色、绿色、蓝色、紫色和黑色。
Painted decoration on bronze casting was a new technique begun in Qin times. White is the basic colors, and decorations are in red, green, blue, purple and black.
如果你冷却太快，黑色氧化物将继续坚持铜。
If you cool it too quickly, the black oxide will stay stuck to the copper.
它有锌，铜镀黑色聚合物，镍等的卷筒或纸箱。
It is available in zinc, brass plated black polymer, nickel etc. on reels or cartons.
黑金镶嵌：银、铜或铅的硫化黑色合金，用来镶嵌金属(通常是银)表面雕刻的图案。
Niello: Black metallic alloy of sulfur with silver, copper, or lead, used to fill designs that have been engraved on the surface of a metal object, usually of silver.
磷化液不仅应用于黑色金属及其合金上，而且已应用到铝、锌、铜、镍、铬等各种材质和合金上的表面处理。
The phosphorated fluid not only is applied to ferrous metal and its alloy, but also to surface disposal of aluminum, zinc, copper, nickel, chrome and various materials and alloys.
铜磷钎料适宜于钎焊铜及黄铜墙铁壁，但是不适宜钎焊黑色金属。
The copper-phosphorus filler metals are suitable to braze copper, brasses but they can not be suitable to braze ferrous.
它得到真正的黑色和混乱，而您正在做的，但冲洗它关闭，voila，闪亮的铜。
It gets really black and messy while you're doing it, but rinse it off, and voila, shiny copper.
但是劣质铜，铜材质里面含有杂质，用手一弯就断成两截，里面可以看到有黑色杂质，这个是绝对不能采用的。
But the poor quality of copper, copper material which contains impurities, broken into two parts on hand curved, which can be seen in black impurities, this is definitely not used.
但是劣质铜，铜材质里面含有杂质，用手一弯就断成两截，里面可以看到有黑色杂质，这个是绝对不能采用的。
But the poor quality of copper, copper material which contains impurities, broken into two parts on hand curved, which can be seen in black impurities, this is definitely not used.
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