a small tower on top of a larger tower or at the corner of a building or wall, typically of a castle
(尤指城堡的)角楼,塔楼。
a low, flat armoured tower, typically one that revolves, for a gun and gunners in a ship, aircraft, fort, or tank
(尤指可旋转的战舰、飞机、堡垒或坦克的)炮塔。
a rotating holder for tools, especially on a lathe
(尤指机床上的)转台。
(亦作
锥螺。
"Middle English: from Old French