Any of various thick,dark,sticky substances obtained from the distillation residue of coal tar,wood tar,or petroleum and used for waterproofing,roofing,caulking,and paving.

• 沥青，人造沥青某种厚厚的、黑而粘的物质，由炭焦、木焦或石油的剩余物中提炼出来，用于防水、盖屋顶、填缝和铺路。