"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.
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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