求翻译：由图4可知，对于调幅网点，随着加网线数的增加，网点扩大值明显增大，符合加网线数与网点扩大的一般关系，300线以上的加网线数不适于本实验条件下印刷。是什么意思？

Figure 4 shows that the AM network, with the increase in the number of screen lines, dot gain values ​​increased significantly, in line with the number of screen lines and outlets to expand the general relationship, more than 300 lines of screen lines is not suitable for our experimental conditions

From Figure 4, we can tell for amplitude modulation points, with the increased number of network cable, and dot gain value has increased, consistent with the line and DOTS expansion in general and, more than 300 lines of the line did not lend themselves to the lab the printing conditions.

May know by Figure 4, regarding the amplitude modulation mesh point, along with adds the mesh wire number the increase, the mesh point expansion value increases obviously, tallies adds the general relations which the mesh wire number and the mesh point expand, 300 above Canadian mesh wire number is

From Figure 4, for am screening, as the Canada line increase, dot gain value significantly increased, in line with the Canadian line and dot gain general relations, plus line of more than 300 lines not suitable for printing under experimental conditions.

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