单词	test mandrel
释义	test mandrel 试验心轴
随便看	selfshadowing self-sharpening self sharpening selfsharpening self sharpening bit self-sharpening bit self sharpening blade self-sharpening blade self-sharpening device self-sharpening share self sharpening share self shield selfshield self-shield self-shield coil self shield coil self-shielded arc welding self-shielded burnable poison self-shielded poison self-shielded welding wire self-shield(ing) self-shielding selfshielding self-shielding burnable poison self-shielding coil 知人之明知人善任知人知面不知心知人论世知其一不知其二知其一，不知其二知其不可而为之知名当世知命不忧知命之年已已决犯已婚已就已往已故已有年所已极已然已矣