plunger valve ring 柱塞阀密封圈
plunger O ring 柱塞O型圈
plunger assembly O ring 油泵柱塞O型圈
plunger split ring 冲头夹环
Plunger backup ring 陶瓷杆后的铜垫
ring plunger 环状活塞声源
O-ring plunger 柱塞O型圈
quadrate ring plunger 方形环状活塞
The radiated sound field of ring plunger is analyzed.
研究了环状活塞声源辐射声场的特性。
Based on a lot of experimental analysis and field tests, the states of bubble flow, plunger flow, ring film flow, fog flow lied in gas-water phases in wellbore are summarized.
本文通过几年来大量的实验分析和现场试验，总结出气水两相在井筒内主要存在气泡流、柱塞流、环膜流、霉状流。
The main bearing and each dial are driven by electromotor of main machine through reducer, and Numbers of roller which are rolling in the ring, which are driven by dial through plunger.
主机电动机通过减速器带动主轴及各层转盘旋转，转盘通过柱销带动几十个环辊在磨环滚道内滚动并旋转。
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