"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。”

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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。

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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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