There's lighting inside the case and sight window on the outside door, convenient for observation.

两个玻璃观察窗位于给料机进口端（端门），用于观察胶带运行状况。

youdao

She started a little at the sight of the open window.

她看到开着的窗户，吓了一跳。

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Encourage your cat to climb by putting a table in front of a window that looks out to a bird feeder or some alluring sight.

在窗户前面一张桌子，鼓励你的猫去爬，让他看到窗外有一个喂鸟器或者迷人的视觉。

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Nor were they likely to in the near future, given the task ahead, and the sight from our window of the thousands of pilgrims milling around the white marble of the Grand Mosque.

CNN: Preparing to cover The Hajj

Joel lay mute and still in his bath, then shivered in his Spider-Man pajamas and refused to get into bed because he had caught sight of the moon through his bedroom window.

NEWYORKER: The Swan

Sitting in his presidential palace, by the window through which Makarios escaped in July 1974 and in sight of the Turkish-Cypriot flag painted provocatively on the Pentadaktylos mountains, Mr Christofias is emphatic.

ECONOMIST: Cyprus, Turkey and the European Union