英语词汇secondary constants怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	secondary constants
释义	secondary constants 简明释义二次常数网络释义 1 ?二次常数二次常数双语例句 1 Primary keys are stored in $self->{1} and secondary keys in $self->{0}; the numeric constants have symbolic names PRIMARY and SECONDARY that make them more readable in my opinion. 主键存储在 $self->{1} 中而辅键存储在 $self->{0} 中；数字常量具有符号名称 PRIMARY 和 SECONDARY，我个人以为这使它们可读性更好。
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