Therefore the cultural rules of coding and decoding concern not only the comprehension of the symbols 'superficial meaning, but also cultural practice, social background, and immediate benefits.

因此编码与解码的文化规则不仅仅是理解符号表面意义的能力问题，而且牵涉到文化惯例、社会背景、当前利益等诸多方面。

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Longer battery life requires lower power consumption in both high performance and low performance modes (MP3 decoding, background processing, etc.).

ENGADGET: Toshiba mobile RAM uses prediction, adaptation to cut power use by up to 85 percent