求翻译：由表2数据可知：175lpi黄、品红和青版，同心圆网点与调幅网点的印刷反差较为接近，而调幅网点的相对反差明显高于同心圆网点，可见，同心圆网点在阶调层次再现方面，能达到ISO标准【6】，但相比于调幅网点，并无明显优势。是什么意思？

Table 2 data shows that: to 175lpi yellow, magenta and green version of the concentric circles outlets closer to the print contrast of the AM network, and the relative contrast of the AM network is significantly higher than the concentric outlets, visible, concentric outlets at the level of tone rep

Data from Table 2 we know: 175 lpi yellow, magenta, and cyan dot version, with concentric circles of the amplitude modulation points closer to printing contrast, and the relative amplitude modulation contrast points significantly higher than points, concentric circles, concentric circles can be seen

Data may know by Table 2: 175lpi yellow, the pinkish red and the blue version, the concentric circle mesh point and the amplitude modulation mesh point printing contrast is close, but the amplitude modulation mesh point relative contrast is higher than the concentric circle mesh point obviously, obv

Table 2 data: 175lpi yellow, magenta and blue version, concentric network printing contrast with am screening is closer to, and am screening of relative contrast is clearly higher than concentric dots, visible, concentric network reproduced tone levels, to achieve the ISO standard "6", but compared

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