n.粗苯；安息油；偏蘇油
The consumption of crude benzol is obviously reduced by decreasing the extraction temperature properly and it doesn't influence the efficiency of dephenolization. 適當(dāng)降低萃取操作溫度，可以明顯降低粗苯消耗，而不會影響其脫酚效率。
n.粗苯(安息油；偏蘇油)
苯系物
