The contact metamorphic zone may be further divided into coking coal mixing zone, natural cokezone, coking coal zone and normal coal zone.
接触变质带可进一步划分为岩焦混杂带、天然焦带、焦化煤带、正常煤带。
2
The paper introduces the project of treatment of the oily waste water in the residue oil tank zone by advective separation of oil-blending and solidification gas-floating-coke filtration process.