查询词典 pause key

numeric key pad：数字小键盘

"数字键锁功能","numeric key lock function" | "数字小键盘","numeric key pad" | "数值键打孔","numeric key punch"

numeric key lock function：数字键锁功能

"数字键","numeric key" | "数字键锁功能","numeric key lock function" | "数字小键盘","numeric key pad"

key pad numeric mode：小键盘数字模

小键盘号码 key pad number | 小键盘数字模 key pad numeric mode | 小键盘值 key pad value

key executive option：重要高级治理人员购股权

key currency要害货币,要害通货 | key executive option重要高级治理人员购股权 | key executive insurance重要高级治理人员保险

key station on line business oriented language,KOBOL：主站联机商业导向语言

主站 key station | 主站控制语言 key station control language,KCL | 主站联机商业导向语言 key station on line business oriented language,KOBOL

Press the page Down key：向下跳页

Press the page Up key:向上跳页. | Press the page Down key:向下跳页. | Press the page Up Arrow key:游标向上跳动.

Press the page Down Arrow key：游标向下跳动

Press the page Up Arrow key:游标向上跳动. | Press the page Down Arrow key:游标向下跳动. | Press the page Left Arrow key:游标向左跳动.

Press the page Up Arrow key：游标向上跳动

Press the page Down key:向下跳页. | Press the page Up Arrow key:游标向上跳动. | Press the page Down Arrow key:游标向下跳动.

primary key：主码

I)超码(SUPER KEY)关系中能惟一标识每个元组的属性或属性组(集) 一个关系可能有多个超码;候选码(CANDIDATE KEY)关系中能惟一标识每个元组的最少属性或属性组 一个关系可能有多个候选码;主 码(Primary Key)从候选码中选择一个作为该关系的主码,

composite primary key：复合主键

但复合外键(composite foreign key)必须引用列数及列数据类型均相同的复合主键(composite primary key)或复合唯一键(composite unique key). 由于复合主键及复合唯一键的列数不能超过 32 个,因此复合外键也受此限制.

Camphorwood：香樟

camphor oil 樟脑油 | camphorwood 香樟 | camp process 水泥保护木柱法

platinum resistance thermometer sensor：铂热电阻

plateau,平台;坪 | platinum resistance thermometer sensor,铂热电阻 | playback apparatus,回放仪