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填料密封腐蚀磨损是填料密封装置失效的主要原因。
Corrosion wear is the major reason of the packing seal destruction.
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常用轴封装置有填料密封和机械密封两种。
Common seal installations fill two mechanical seals and seal.
youdao
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常用轴封装置有填料密封和机械密封两种。
Common seal installations fill two mechanical seals and seal.
youdao