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海管置换
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subsea pipeline displacement
海管置换
管道停输后,为避免高凝点的原油凝固在管道内造成管道堵塞事故,而使用低凝点、低黏度介质将管内高凝点或高黏度介质替换出去的操作。
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physical control
physical control of rodent infestation
physical control of weeds
physical crosslink
physical crosslinking
physical crosslinks
physical cue
physical culture
physical culture hygiene and management of school
physical dance
physical decontamination
physical defense
physical deodorant method of sediment
physical dermatoses
physical device
physical digestion
physical dimension
physical disk
physical distance
physical domain
physical double
physical double star
physical education
physical education and health course
Physical Education College of Southwest University
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