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"The use of UV light to identify [types of] oil is an industry-wide process," said Kirby, a graduate student at the University of South Florida. But "I've always seen it in a [lab] machine," he said.
“应用紫外线鉴定石油种类是广泛应用的工业程序,”南佛罗里达大学的研究生Kirby说,“但我一般是在实验室里才能看到。”
The paper introduces a transformation by PLC and frequency-changer in the light of current lashing problem of drawing-oil tube cleaning machine in oil field enterprises.
本文针对油田企业中抽油管清污机中存在的冲击问题,用PLC、变频器等对其控制进行了改造。
Our company is specialized in series of diesel engine, electric fuel pump, oil injection nozzle, start machine and accessories used for cars and light duty trucks.
本公司专业生产电动燃油泵、喷油嘴及起动机系列产品,适用于轿车、轻卡及柴油机配套产品及配件。
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