starting crude 发酵原料
The starting materials as petrochemical industry are obtained from crude petroleum in one of two general ways.
石油化工的初始物质是以两种普遍方法中的一种获得的。
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The starting materials for the petrochemical industry are obtained from crude petroleum in one of two general ways.
石化工业的初始原料概通过一到两种方法从原油中提取。
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