A rounded, bulging, usually transparent structure, such as one used for observation on certain aircraft or for display and protection of packaged products.
一种圆形拱起，常为透明的结构，如某些飞机上用于观察或展示和保护包裹物品。
A rounded, bulging, usually transparent structure, such as one used for observation on certain aircraft or for display and protection of packaged products.
一种圆形拱起，常为透明的结构，如某些飞机上用于观察或展示和保护包裹物品。
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