求翻译：值得注意的是，同心圆网点扩大虽总体高于调幅网点，且随着加网线数的提高，网点扩大波动较小，且总趋势有所降低；是什么意思？

It is worth noting that the concentric outlets to expand the overall higher than the AM network, and improve as the number of screen lines, dot gain, less volatile, and the general trend of decrease;

It is noteworthy that the concentric circles dot gain, although overall than Amplitude modulation and nodes, along with the increase of the line, and dot gain fluctuations are small, and the trend has been reduced.

It is noteworthy that, although the concentric circle mesh point expands the overall to be higher than the amplitude modulation mesh point, also along with adds the mesh wire number the enhancement, the mesh point expansion undulation is small, also the general trend has reduces;

Worth noting is that donut dot gain is generally higher than that of am outlets, and with the improvement of plus line, dot gain less volatile, and lower overall trends;

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