Note that the second-order peak is

Note that the second-order peak is barely seen. This is
ascribed to the equal thickness of the two alternating layers
with which the even-order maxima of the structure factor are
exactly at the sameqvalues where the form factor of the layers
is at the minimums.

結果 (中文) 1:

注意二阶峰值几乎看不见。这是归因于平等的两个交替层厚度偶数阶极大值的结构因素有正是在 sameqvalues 地方各层的形式因素处于最低。

結果 (中文) 3:

注意，第二峰几乎没有看到。这是
归因于等厚的两层交替
与结构因素的偶数阶的最大值
正好在sameqvalues所在的层
形式因素在最低。