How to control magnitude, size and gray scale of waveforms with parameters is also given in this paper.

介绍了用参数来控制波形的幅度、尺寸及灰度的软件实现。

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This article introduces the gray scale displaying method of LED display and mainly focus on the algorithm parameters in the LED display's driving control mode.

介绍了LED显示屏灰度的显示方法，着重于显示屏设计中驱动控制方式的若干算法参数。

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There was no difference of the average gray scale between the sham operation group and normal control.

假手术组和正常对照组灰度值比较无统计学差别。

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