详细解释:n. 舷窗内盖
英语解释：
名词 deadlight:
a strong shutter over a ship's porthole that is closed in stormy weather详细解释：
dead.light
n.（名词）Nautical 【航海】 A strong shutter or plate fastened over a ship`s porthole or cabin window in stormy weather.舷窗内盖：一种坚固的百叶窗或厚金属板，系在船的舷窗上或船窗玻璃上，用在暴风雨的天气中A thick window set in a ship`s side or deck.固定舷窗：安装在船侧或甲板上的厚窗户A skylight constructed so that it cannot be opened.固定天窗：这样建造的天窗使它不能被打开