1. 石墨：plumb测深锤 | plumbago石墨 | plumber管子工

2. 粉状石墨：粉末冶金,粉末冶金术 powder metallurgy | 粉状石墨 plumbago | 封闭 sealing 封闭剂 sealing compound

3. 石墨,炭精：plumb line deviation 垂线偏差 | plumbago 石墨,炭精 | plumbico camera tube 氧化铅光电导摄管

4. 碳陶料：plug 塞 | plumbago 碳陶料 | plunge up 将晶片往上顶超

noun

1. any plumbaginaceous plant of the genus Plumbago

2. used as a lubricant and as a moderator in nuclear reactors

Synonym: graphiteblack lead