rear pump 中文意思是什麼
rear pump
解釋
輸出泵-
Technologies such as chemical constitution selecting, alloy melting, casting process designing and optimizing, mechanical machining and heat treatment process on pump body, impeller, front and rear board of cw. nb450 dredge pump abrasion resistance parts are concluded
摘要總結了用於挖泥船的cw . nb450型泥泵過流耐磨部件泵殼、葉輪、前後襯板的化學成分選擇、合金熔煉、鑄造工藝設計及優化、機械加工、熱處理工藝等技術。
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