电影摄影。安全电影胶片。要求和试验方法。
Cinematography. Motion - picture safety films. Requirements and methods of testing.
本文通过试验证明用适当的调节措施，通过胶片复制，可以得到较满意的结果。
It has been proved through the test that the satisfied result can be reached through the proper regulating measure such as making a copy of a film.
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