The crude oils of Chang 20 belong to typical immature oil which have odd even predominance and lower ratios of sterane and terpane maturity index.
20
原油既具有正烷烃奇偶优势，又具有较低甾萜烷异构体
值，属于典型低熟原油。
松龙（商品名）The crude oils of Chang 20 belong to typical immature oil which have odd even predominance and lower ratios of sterane and terpane maturity index.
20原油既具有正烷烃奇偶优势，又具有较低甾萜烷异构体值，属于典型低熟原油。
声明：以上例句、词性分类均由互
源自动生成，部分未经过人工审核，其表达内容亦不代表本软件
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