lamp black
柯林斯词典
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
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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