加入低温流动性能改进剂生产的低凝柴油，在储存和使用过程中存在凝点、冷滤点反弹回升现象，因此对辽河原油的常压柴油、加氢裂化柴油进行了加剂研究。
It is known that setting point and cold filter plugging point of low pour point diesel with cold flow promoter can reverse during the storage and use process.
油页岩常与上覆沉凝灰岩或其它凝灰质岩石呈伴生关系。
Oil shale always has the accompanying relationship with overlying sedimentary tuff or other tuffaceous strata.
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