硬焦油沥青 asphalt tar pitch; asphalt-tar pitch 煤焦油沥青挥发物，以可溶于环己烷量算 coal tar pitch volatiles, as cyclohexane solubles .
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asphalt-tar pitch 硬焦油沥青
coal-tar asphalt coal tar pitch 煤焦油沥青
asphalt-tar E pitch 硬焦油沥青
asphalt-tar ĕ pitch 硬焦油沥青
asphalt-tar ĥ pitch 硬焦油沥青
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