挡油圈 oil baffle ; oil deflector ; oil thrower ; oil ring
石油圈闭 [油气] petroleum trap ; oil trap
护油圈 [车辆] oil control ring ; oil retainer ; oil seal retainer ; oil control ring oil retainer
油圈闭 [油气] oil trap
石油圈闭作用 trapping of oil
刮油圈 oil scraper ring
滴油圈 drip ring
封油圈 oil seal ring
刹车遮油圈 brake grease baffle ; brake grease shield
第二天早晨，理发师发现门前有人送了一打油圈饼。
The next morning the barber found a dozen doughnuts at the door to his shop.
方法：富集培养、血平板分离、摇瓶培养和排油圈测定。
Method: Based on enrichment culture, blood plate separation, the flask culture and exclusive circle of methods such as oil.
生物表面活性剂的检测方法主要有：液滴坍塌法、排油圈法和血平板法。
There are three main methods, drop collapse, oil spreading, and blood agar lysis, to detect biosurfactant production.
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