Load the film cassette into the film chamber and pull out the film leader so that it extends past the film leader index.

把胶卷盒放入胶卷盒腔，拉出胶卷的牵引头，使牵引头超出牵引头标志。

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The instability of optical image of X ray film optical mark camera caused by the different thickness of dark cassette is resolved.

解决了X光片光学标记摄影机由于暗盒厚度差所引起的开盖困难和导致光学成像质量不稳定的问题。

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Phonographs were going to kill sheet music, the rise of radio threatened to undermine sales of phonograph discs, video recorders were going to wipe out the film industry, and cassette recorders spelt doom for the music business.

ECONOMIST: The same old song

The organ was searched and a film retrieved, which proved to be blank, but meanwhile Podesta was spotted trying to hide a video cassette under a pew cushion.

BBC: Secret Madonna video man fined