... 煤焦油化学 coal tar chemistry 煤焦油轻油 coal tar light oil 煤焦油染料 coal tar dye ...
双语例句
1
Medium with worse lubricating property, such as light fuel oil, heavy fuel oil, coaltar, asphalt, viscose, emulsified mixture, etc.
润滑性较差的介质，如轻质燃油、重质燃油、煤焦油、沥青、粘胶液、乳化液等；
2
The technology is used for conversion from hydrofining coke-oven gas into the oil, conversion from coaltar into the oil and light benzole hydrorefining.