lamp black
柯林斯詞典
1. N a finely divided form of almost pure carbon produced by the incomplete combustion of organic compounds, such as natural gas, used in making carbon electrodes and dynamo brushes and as a pigment 炭黑
返回 lamp black
1. N a finely divided form of almost pure carbon produced by the incomplete combustion of organic compounds, such as natural gas, used in making carbon electrodes and dynamo brushes and as a pigment 炭黑