常见例句雙語例句Distill coal tar in a tube furnace to generate 3 mix oil , and obtain crude phenol from washed 3 mix oil .煤焦油經琯式爐蒸餾後，酚油，洗油和萘油餾分組成的三混餾分再經過洗滌後獲得。www.koppers-china.com 返回 crude phenol