predominance

American research universities plenarily exert the re-source predominance in order to enhance research ability of undergraduate and bring up theirs innovative energy.The research uni-versit...

美研究型大学这种充分发挥研究型大学的资源优,科生的研究能力和培养学生创新精神的经验无疑是值得我研究型大学学习和借鉴的。

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.

长20井的原油既具有正烷烃奇偶优，又具有较低甾萜烷异构体比值，属于典型的低熟原油。