名词短语
中文翻译：电影放映机指示器
同义词：
['film projector indicator', 'film projection indicator例句：1. The film plane indicator on the movie theater screen shows the current frame number.（电影院屏幕上的电影放映机指示器显示当前帧号。）']
例句：
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1. The film plane indicator on the movie theater screen shows the current frame number.
电影院屏幕上的电影放映机指示器显示当前帧号。
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2. The technician adjusted the film plane indicator to ensure a clear picture.
技术人员调整了电影放映机指示器，以确保画面清晰。
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3. The film plane indicator was used to measure the distance between the camera and the subject.
电影放映机指示器被用来测量摄像机与主体之间的距离。