... 回转轴传动 pivot gearing 回转轴密封 rotary shaft seal 分封组合与分解 packet assemble and disassemble，pad ...
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介绍了一种新研制成功的专利产品——径向迷宫式回转轴密封装置。
A new developed patent product, radial labyrinth drive shaft sealing unit was introduced.
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