What is diesel pumping up and pumping down?
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The main difference between downward drawing and lower drawing. What does “side-line extraction” mean? What is the relationship between diesel and mid-stream reflux?
\"Upper extraction\" and \"lower extraction\" refer to the boiling range; oil obtained through upper extraction is lighter compared to that obtained through lower extraction
Pull up? Pull down? What thing? Haven’t heard of it: L, if you know, please explain