asphalt-tar pitch
常见例句
- The performance and usage of coal-tar asphalt were introduced. Meanwhile, it was assumed the excellent characteristics, mechanism and technology of the modified coal tar pitch.
介紹了煤瀝青的性能、用途以及有廣泛用途的煤焦油改質瀝青的優異特性，改質機理和生産工藝； 返回 asphalt-tar pitch