key symbol out of context 上下文之外的关键符号
function key symbol 功能键符号
SYMBOL KEY 术语缩写
key top symbol 键顶符号
line end symbol key 列尾符号键
Key to Symbol 图例说明
The foreign key side is also denoted by a key symbol.
外键方也由键符号表示。
The primary key side of a one-to-one relationship is denoted by a key symbol.
一对一关系的主键方由键符号表示。
A primary key column is identified by a primary key symbol in its row selector.
主键列由其行选择器中的主键符号标识。
And most of these commands you don't actually need but this little caret symbol means control, so every keyboard these days has a control key so you hold that and hit X for instance to exit the program.
这里大多数命令你们都用不着,这个小插入符意味着控制,每个键盘都有一个控制键,譬如,当你敲入X时,就退出这个程序。
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