used oil

基本解释

This method was used in Russia and Europe 3000 years ago and they used oil, acid or water.
这种方法被使用于在3000年前的俄罗斯和欧洲，他们使用油，酸或水。
It used oil sales to reward people, firms and countries (such as Russia) that were known to be pro-Iraqi.
它利用石油销售来回报那些被认为亲伊拉克的民众、公司和国家（如俄国等）。
Use nontoxic cleaning products and paints over a dropcloth, recycle used oil, and schedule regular maintenance to avoid fuel and lubricant leaks.
在罩单上使用无毒的清洁产品和油漆，回收废机油，制定定期维修计划，避免燃料和润滑油泄漏。

Until now, Homer had used oil-based paints.
That's right. Louisiana Slim he's sometimes called. Yes, Sir. I sure have met Big Slim. And he used to work in the east Texas oil fields?"
对，人们有时叫他路易斯安那的细杆，是的先生我肯定,遇见过，他过去是不是经常在得克萨斯州东部的油田工作？“
耶鲁公开课 - 1945年后的美国小说课程节选
Yet, they wanted to get clean and so what device they used was to take oil, typically olive oil, spread it on themselves, then get a scrapper, a metal scrapper, and scrap off the oil with it what was underneath the oil.
当他们想要保持清洁时,他们所使用的东西就是油,通常是橄榄油,把橄榄油抹在身上,然后拿一个刮板,金属刮板,把污垢和油一起刮下来
耶鲁公开课 - 古希腊历史简介课程节选

This ushered in a new era when China used oil exports to obtain the hard currency to buy the equipment and technology needed to modernize its economy.
FORBES: Oil and China

煎炸废油
The components of refined biodiesel were analyzed by GC. The content of fatty acid methyl ester reached to 98.03% by fatty acid methyl esterification, and 98.53% with used oil as the material.
利用气质联用仪对制备的生物柴油的成分及组成进行分析，脂肪酸甲酯化反应制备的生物柴油脂肪酸甲酯含量达到98.03％，以煎炸废油为原料制备的生物柴油脂肪酸甲酯含量达到98.53％。
机械工程
废机油