extra thick crude oil
... 稠油 Thick oil 特稠原油 Extra thick crude oil 原油的体(容)积 Volume of crude oil ...
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本文所说降凝剂是指能破坏特稠原油的结构力，使原油粘度和凝点降低的化学剂。
This article refers to what PPD can undermine the special structure of thick crude oil, and crude oil viscosity and pour point reduction in the chemical agent.
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