With the riser height increases, the mass fraction of heavy oil reduces, while the weight of gasoline, LPG, gas and coke has been increasing.
随着提升管高度的增加，重油的质量分率降低，而汽油、液化气、气体和焦炭的产率增加。
Metallization degree decreases while utilization degree of gas increases gradually with the height of charge increasing.
随着料高的增加，金属化率不断下降，然而气体利用率却在不断升高。
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