| 单词 | mandrel |
| 释义 | mandrel [`man·drǝl] ENGINEERING The core around which continuous strands of impregnated reinforcement materials are wound to fabricate hollow objects made of composite materials. MECHANICAL ENGINEERING A shaft inserted through a hole in a component to support the work during machining. METALLURGY A metal bar serving as a core around which other metals are cast, forged, or extruded, forming a true central hole. |
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