求翻译：在这种方式中，虽然每一时刻只选通一位数码管，但由于人眼具有一定的“视觉残留”，只要延时时间设置恰当，便会感觉到多位数码管同时被点亮了。是什么意思？

In this way, every moment to choose a digital tube, but because the human eye has a certain "residual vision", as long as the delay time setting is appropriate, it will feel a number of digital tube is lit at the same time .

In this way, although only one time through a digital tube, but the human eye has a certain amount of "residual" vision, as long as delay time is set properly, it will feel to many digital tube is lit.

In this way, although each time only selects a nixietube, but because the human eye has certainly certainly “the vision to remain”, so long as the delay time establishment is appropriate, then can feel at the same time the multi-position nixietube is lightened.

In this way, although only one gate each time digital control, but because the human eye has a certain amount of "persistence of vision", as long as the delay time is set properly, will feel much while lit by led.

正在翻译，请等待...