insoluble tar
英 [ɪnˈsɒljəbl tɑː(r)]
美 [ɪnˈsɑːljəbl tɑːr]
n. 沉淀（木）焦油
双语例句
- The test method of quinoline-insoluble with low content in coal tar pitch
测定低含量喹啉不溶物的试验方法 - The properties of the quinoline insoluble material in coal tar pitch and the stability of its determination method were investigated by orthogonal experiment using modified pitch as raw.
探讨了煤沥青喹啉不溶物的性能，并通过正交试验法对其测定方法的稳定性进行了研究。