black lead
black lead是什么意思、black lead怎么读
石墨, 笔铅\n【化】 石墨
black lead汉语翻译
石墨, 笔铅<br>【化】 石墨
black lead英语解释
名词 black lead:
- used as a lubricant and as a moderator in nuclear reactors同义词：graphite, plumbago
动词 black lead:
- cover with graphite同义词：blacklead