Secondly we changed the sampling mode, using dual monostable multivibrators to select the focusing window, which solves the sampling drift problem raised by SCM break.
其次改变了系统的采样方式，采用双单稳态出发电路对调焦窗口进行选择，解决了原来存在的因中断产生的采样漂移问题。
Genetic drift is change in the genetic composition of a population arising as a consequence of sampling of gametes in a finite population.
所谓遗传漂变就是指：在一个有限的种群内，由于配子的随机取样使得遗传组成在种群内发生变化的现象。
ACC makes use of current-sampling feedback to realize the minimum current drift and maximum output stability.
ACC控制利用电流采样反馈，从而使电流漂移最小、LD输出稳定性最大。
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