The characteristics of the diffraction efficiency, compression, cross modulation, and intermodulation intensities are analysed theoretically.

分析了多维声光衍射的衍射效率、压缩、交叉调制和互调制强度等特性。

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The GF6 records 1920 x 1080 at 60i (60 Hz) full HD video with full-time AF and high quality stereo sound in the AVCHD format which excels in both compression efficiency and compatibility with AV equipment for playback.

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The key to thermal efficiency for internal combustion engines is compression ratio.

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New compression formats like HEVC (high efficiency video coding) may be the key to enabling Ultra HD and making room for the explosion of mobile devices.

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