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Keyword [Ball valve]
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1. Research On Near The Bottom Of Deepsea Biological Larva Pressure-retained Sampler Of Multiple Nets Subsection/Layered
2. Research On The Key Technology Of Deep-sea Sediment Sampler And Ball Valves
3. Research On Solid-Liquid Two-Phase Flow And Erosion In Ball Valve With Different Openings
4. Analysis And Research Of The Ability Of All-welded Ball Valve To Resist Earthquake Disaster
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