谜面:左旋螺纹 (灯谜术语)谜底:反扣..[阅读全文]
谜面:右旋螺纹 (灯谜术语)谜底:正扣..[阅读全文]
谜面:左旋螺纹(打一灯谜用语)谜底:反扣..[阅读全文]
谜面:右旋螺纹(打一灯谜用语)谜底:正扣..[阅读全文]