短语词组短语coke oven tar pitch 焦炉沥青coke oven tar 焦炉焦油;翻译coke tar distillation 焦油蒸馏polyurethane coke tar 聚氨酯焦油coke -oven tar pitch 翻译coke oven coal tar 焦炉煤焦油 返回 coke tar