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。

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.

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利用空气氧化处理法对沥青基球状活性炭进行了改性。

In this paper, pitch—based spherical activated carbon(PSAC)was modified by the air—oxidation treatment.

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并且随着氧化强度的增强，沥青基球状活性炭的比表面积减小，但总孔容增加。

As the intensity of air—oxidation treatment increased, the surface area of the PSAC decreased, but its total pore volume increased.

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