残炭 meaning in English

carbon residue

Crude oil - determination of carbon residue - conradson method
原油残炭的测定康氏法
Petroleum products - determination of carbon residue - micro method
石油产品残炭测定法
Petroleum products - determination of carbon residue - conradson method
石油产品残炭测定法
Test method for conradson carbon residue of petroleum products
石油制品康拉孙残炭试验方法
Test method for ramsbottom carbon residue of petroleum products
石油产品的兰氏残炭试验方法

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