creosote treatment是什么意思

用法例句

Hydration is applied after puriification of light fraction from destructivedistillation of pine roots,in which the process of destructive distillation turpentine oil,complex phenol oil andmore flotation oil are produced.

经分析，在45℃下反应8小时可使反应液中松油醇的含量由原来的5％左右提高到20％左右，经蒸馏得选矿油、干馏松节油、杂酚油和松焦油，产品色泽浅、稳定，焦臭气味基本消。