注意那些围绕参数名的引号不是必需的（因此通常被省略掉），因为操作符=>将它左边的裸单词（barewords）看作是被引用的字符串。
Note that quotes around the parameter names are not required (and are therefore commonly omitted), because the => operator forces barewords on its left to be treated as quoted strings.
清单1 .“裸”类型参数的New操作。
方法进行裸项栉虎鱼天然分布水域环境调查、生物学参数测定、性腺组织切片观察及室内人工繁养殖试验。
Methods the natural distribution aquatic environment investigation, the biology parameter measurement, the gonad tissue slice observation and the artificial multiplication experiment were carried out.
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