RP 69:2002由美国电气电子工程师学会 US-IEEE 发布于 2002-07-26,并于 2002-07-26 实施。
1.1 This practice describes a test film, the use of which is limited to the determination of the uniformity of scanning-beam illumination in 35-mm motion-picture audio reproducers. 1.2 This test film is not intended to be used for the determination of the correct position of the scanning beam with respect to the reference edge of the film.
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