mandrel 或 man.dril
n.（名词）A spindle or an axle used to secure or support material being machined or milled.紧轴：一根用于固定或支撑待切削或粉碎原料的新心轴或轮轴A metal rod or bar around which material, such as metal or glass, may be shaped.心棒：一根金属杆或杠，将金属或玻璃等材料缠绕其上，可以改变形状A shaft on which a working tool is mounted, as in a dental drill.心轴：用于安装工具的蕊棒，如牙钻蕊棒
来源：Possibly alteration of French mandrin [lathe] 可能为 法语 mandrin的变化 [车床] from Provenôal mandre [axle, crank] 源自 普罗旺斯语 mandre [轴，曲柄] from Old Provenôal [beam of a balance] 源自 古普罗旺斯语 [平衡杆] from Latin mamphur [bow-drill] 源自 拉丁语 mamphur [变钻] [perhaps from Oscan] [可能源于奥斯坎语]
