The paper throws light on the fundamental contradiction of self-adaptation in automatic control system by analysing the functions and affects of each unit.

通过对系统中各组元功能的描述及其各自在整体系统中作用的分析，可以揭示出自控系统中自适应的基本机理。

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In order to fully exploit the sound potential of the HDVD 800 with any audio source, a rotary gain switch at the rear of the unit provides simple adaptation of the amplifier output to the audio input voltage.

ENGADGET: Sennheiser unveils HDVA 600 analog headphone amp, asks for $1,600