单词	crude oil origin
释义	crude oil origin 原油成因
随便看	reagent reagent for thin-layer chromatography reagent removal reagent research reagent resistance reagents Reagents,Affinity Labeling Reagents and Indicators Reagents,Bifunctional reagents boxes reagent scheme Reagents,Crosslinking Reagents,Cross Linking Reagents,Cross-Linking reagent set Reagents for Advanced Material Research reagents for anion reagents for colouration reagents for mass spectrometry reagents for spectrometry reagents of flotation reagents of high purity reagent solution reagent sprayer reagent's purity reagents recombination