direct current ring 中文意思是什麼
direct current ring
解釋
直流振鈴-
Step - forced dynamic speed drop analysis digital control, dual ring, direct current and reversible speed governing system
數控雙環直流可逆調速系統階躍擾動動態速降分析 -
Standard test method for direct - current magnetic properties of materials using the ballistic method and ring specimens
用環形試驗法和沖擊法測定材料的直流磁性能的標準試驗方法
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