| 1 | These bulbs used carbonized cardboard. | |
| 2 | This entails the destruction of the equipment tested, through carbonization of the insulating material. | |
| 3 | But experts warn that de-carbonising the energy supply must happen fast, given the massive toll on China's environment. | |
| 4 | Modern coal chemical industry has shown a bright future by transferring its basis from coal carbonization to coal gasification. | |
| 5 | This is carbonised by heating it in multiple stages to leave individual carbon fibres just seven microns (0.007 millimetres) thick. |
Copyright © Purple Culture Co., Ltd. 2001 - 2026. All right reserved.
