石油焦是炼油工艺的副产品，具有低灰分、一定挥发份和高热值的特性。
As a byproduct of crude refining process petroleum coke features a low ash content, moderate volatility and a high heating value.
石油焦是炼油工艺的副产品，具有低灰分、一定挥发份和高热值的特性。
As a byproduct of crude refining process petroleum coke features a low ash content, moderate volatility and a high heating value.
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