a thick black tar intermediate between petroleum and asphalt
同义词:mineral tar
maltha详细解释
mal.tha n.(名词)A black, viscous natural bitumen.软沥青:一种天然的黑色粘性沥青 来源:Middle English malthe 中古英语 malthe from Latin maltha 源自 拉丁语 maltha from Greek [a mixture of wax and pitch] * see mel- 源自 希腊语 [蜡和沥青的混合物] *参见 mel-