prefill valve 中文意思是什麼
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For the fault of prefill valve occurred in hydraulic system of 50mn trimming press, the causes have been analyzed and eliminating measures put forward
摘要分析了50mn切邊液壓機充液閥脫落、斷裂失效的過程和原因，提出了相應的解決措施和充液閥設計應注意的問題。
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