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文章介绍了刮蜡器的结构和作用原理,总结了现场试验的一些经验,并表明采用刮蜡器的油井所获得的经济效益是相当可观的。
The paper introduces the structure and principle of the scraper and summarizes some experiences of the field test. It also shows that the economic benefit obtained by the oil scraper is considerable.