To examine their depressive effect, these PPDs were used in hydrogenation base oil and paraffin base oil.
将所合成的降凝剂应用于加氢基础油和石蜡基基础油中，考察其降凝效果。
Mainly, the application and evaluation of PetroChina paraffin base rubber oil are described.
主要综述了中国石油石蜡基橡胶油的应用与评价情况。
The formulation of paraffin base the fourth generation diesel locomotive Oil containing zine was presented.
介绍了石蜡基含锌内燃机车四代油的配方研究。
It also has an excellent effect for paraffin-base lube oil after compounded with T803B.
与T803 B复配后，对石蜡基油也有较好的降凝效果。
The research proved that the copolymer have very good pour point depressing effect on paraffin-base crude oil. It is a new kind of pour depressor.
研究表明，该共聚物对某些含蜡原油有很好的降凝作用，是一种新型的原油降凝剂。
The research proved that the copolymer have very good pour point depressing effect on paraffin-base crude oil. It is a new kind of pour depressor.
研究表明，该共聚物对某些含蜡原油有很好的降凝作用，是一种新型的原油降凝剂。
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