转轴密封
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rotation shaft seal
旋转轴密封
以上为机器翻译结果，长、整句建议使用 人工翻译 。
For the disadvantage of mechanical seal and stuffing seal used widely in kneader, a magnetic fluid seal structure was designed for kneaders which are often with bulky shaft and high rotation speed.
针对捏合机上普遍采用的填料密封及机械密封的不足，设计了一种磁流体密封装置。
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