ball and ring test
... ball and ring method 环球法 ball and ring test 球环试验 ball and seat valve 球形止回阀 ...
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三角环和球试验 Delta ring and ball test
·2,447,543篇论文数据，部分数据来源于NoteExpress
运用流体动力学理论知识，结合试验，建立了环缝磨内介质球的运动模型；
Using the knowledge of the hydrokinetics theory and combining experimentation, created the modal of the medium-balls' movement in Annular Gap Affritor.
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