closing seam 中文意思是什麼
closing seam
解釋
封閉(焊)縫-
Abstract : expanding and closing technique of core - die of longitudinal seam occlusion machine for automobile silencer and design calculation of such mechanics have been introduced
文摘:介紹了汽車消聲器縱縫咬邊脹合技術及其咬邊芯模機構的設計計算。
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