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关注:1
2026-06-27
求翻译:The cavity liquid of a tandem seal is not under pressure, so the back-up seal is not designed for the same heavy duty as the primary seal是什么意思? 待解决
悬赏分:1
- 离问题结束还有
The cavity liquid of a tandem seal is not under pressure, so the back-up seal is not designed for the same heavy duty as the primary seal
问题补充: |
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