| 单词 | 气密 |
| 释义 | 〔boneblack〕A black pigment containing about 10 percent charcoal, made by roasting bones in an airtight container and used in polishes, as a filtering medium, and in decolorizing sugar. Also called bone charcoal 骨炭：碳的含量为10%的黑色颜料，通过在一气密的容器中炙烤骨头而得，用于擦拭如过滤介质，也可用于糖的褪色工艺 也作 bone charcoal |
| 随便看 |
|
学习网英语词汇栏目收词371507余条，连同派生词、复合词、词组和习语等。每个词条提供了音标、词性、释义、用法、搭配和同（近）义词等多项功能，对所收词汇进行全方位的解释和说明，内容丰富，功能全面。