And belong to a clean cooking crude benzole purificatory device.
而且属于一条干干净净的焦化粗苯精制装置。
2
The benzole is then recovered from the oil by steam distillation and stored prior to dispatch off site for sale.
然后用水蒸汽蒸馏将粗苯从油中进行回收，再加以储藏、分送出厂销售。
3
The technology is used for conversion from hydrofining coke-oven gas into the oil, conversion from coal tar into the oil and light benzole hydrorefining.