您要查找的是不是：
- The resulting flue gas is almost pure carbon dioxide. 产生的管道气体几乎仅仅是二氧化碳。
- The black soot deposited on a kettle by a smoky campfire is nearly pure carbon. 带烟的营火在水壶上熏积的黑煤烟几乎是纯碳。
- Chemists had known for a long time that pure carbon normally came in two common molecules forms: graphite and diamond. 长期以来,化学家都知道碳以两种常见的形态存在:石墨及金刚石。
- Diamonds are crystals of pure carbon that have been subjected to tremendous pressure and heat. 钻石是经受了极高温高压后的纯净碳晶体。
- Then he saw, at the bottom of the beaker, so clear it was almost invisible, a perfect quarter-carat crystal of pure carbon. 接着他看到在烧怀底有一块完美的四分之一克拉的纯碳钻石，如此透明，几乎让人看不到它。
- We know that diamonds are pure carbon sheets qualitative elements, the chemical composition of its non-stable, few other impurities containing elements. 我们知道,钻石是元素碳的纯净单质,它的化学成分非稳定,很少含其他杂质元素。
- If you thought that nothing could burn while sandwiched between two bricks of dry ice -- think again. Magnesium can combust in an atmosphere of pure carbon dioxide. 如果你认为，无论什么东西夹在两块干冰之间都不会燃烧，那么就大错特错了。镁就能在弥漫着纯净二氧化碳的环境下燃烧。
- It is the earliest and still popular type of resistors, filming under high vacuum and high temperature splitting & oxidizing the pure carbon hydric onto the ceramic cores. 最早期也最普遍使用的电阻器，于高温真空中分离有机化合物之碳，使附著于瓷棒上并切割而成。
- The rest of the material forms char , which is nearly pure carbon, and ash , which is all of the unburnable minerals in the wood (calcium, potassium, and so on). 剩余的物质形成了木炭，由纯碳和灰组成，灰是不燃的矿物质（钙、钾等）。
- Diamonds are pure carbon. 钻石是纯净的碳。
- It was pure luck that he was home when we called. 非常幸运，我们打电话时他在家里。
- I have the pure heart of a newborn baby. 我有一颗赤子之心。
- We must not condemn her on pure supposition. 我们不能单凭猜测就谴责她。
- Don't believe what he's saying it's pure bunkum. 别相信他的话--纯粹是胡说八道。
- A long hot bath can be pure luxury. 洗个痛快的热水澡可真是一种至高的享受。
- The fields were all covered with pure white snow. 白雪皑皑，铺满田野。
- I make a carbon copy of my documents. 我用复写纸复写文件。
- Soft drinks contain carbon dioxide. 软饮料中含有二氧化碳。
- The condition or quality of being pure or chaste. 纯洁纯洁或贞洁的状况或者品质
