它的每一个像素点都对指定的入射角十分敏感，并提供一部分称为“傅里叶变换”的数学运算以产生一张20像素的图像。

Each of its pixels is sensitive to specific incident angles and supplies a component of the mathematical operation called the Fourier Transform to produce an image about 20 pixels across.

youdao

注意，最初的 “最小字符数” 子模式和运算符子模式都在捕捉圆括号内进行了指定：\(...\)。

Note that both the initial "minimal number of characters" subpattern and the operator subpattern are specified within capturing parentheses: \(...\).

youdao

在本例中，正则表达式的构建方式是对脚本s： words list变量中指定的所有单词执行or运算(即join (s： words，' \ | '))。

In this case, that regex is constructed by or 'ing together all of the words specified in the script's s: words list variable (that is: join (s: words, '\ |')).

youdao