alternate key
替代关键字,备用关键字
key field evaluation character set
关键字段求值字符集
There is already a primary key in this table's key collection.
该表的关键字集中已有一个主关键字。
Index rebuild is only available for Primary or Unique keys (Foreign keys do not have enforcing indexes).
索引重建仅适用于主关键字或唯一关键字（未强制索引外部关键字）。
key coding element location
关键字编码元素单元
key-equals-address addressing
关键字等于地址的寻址
the keyboard has standard, alphanumeric keys
键盘有了标准的字母键，
a typewriter ribbon, keyboard
打字机色带、 键盘.
He is striking the key of his typewrite.
他敲打着打字机的字键。
Press `Shift' and type `A'.
按‘换字键’然後打字母‘A’.
Layout of the Chinese ideographs on keyboard
GB/T7513-1987汉字整字键盘盘面字排列
Fast and instant are the key words.
“快速”是关键的两个字。
key computer priner
计算机的键盘打字机
teleprinter keyboard selection
电传打字机键盘选择
jammed the typewriter keys.
打字机的按键卡住了
A terminal containing less than a full alphanumeric keyboard; for example, one containing ten numeric keys plus control keys.
一种终端，它的键盘不包括全套的字母数字字符键；例如，只包括十个数字键以及若干控制键。
insert program status word key
插入程序状态字关键码
program status word key handling
程序状态字关键码处理