裏うら蓋ぶた

noun

back cover; rear lid

Refers to the removable or openable back panel of a device such as a camera, watch, or remote control, often for battery or film access.

• カメラの裏うら蓋ぶたを開あけてフィルムを入いれる。

  Open the back cover of the camera and load the film.

• 時計とけいの裏うら蓋ぶたを外はずして電でん池ちを交こう換かんした。

  I removed the back cover of the watch and replaced the battery.