the rotating coil or coils of a dynamo or electric motor (发电机或电机的)电枢,转子 ■any moving part of an electrical machine in which a voltage is induced by a magnetic field 电枢 ■a piece of iron or other object acting as a keeper for a magnet 衔铁
an open framework on which a sculpture is moulded with clay or similar material (雕像塑形时用的)支架
(Biology)the protective covering of an animal or plant (生)(动物或植物的)防护外壳 ■[mass noun](archaic)armour (古)盔甲
语源
late Middle English : from French, from Latin armatura 'armour', from armare 'to arm' (see arm)The original sense was 'armour', hence 'protective covering' (sense 3, early 18th cent.), later 'keeper of a magnet', source of sense 1 (mid 19th cent.)