define constant instruction [计] 定义常数指令
define constant double 定义双字常数
define constant floating 定义浮点常数
define constant statement 定义常数语句
define constant character 定义常数字符
dcf define constant floating 定义浮动常数
dcc define constant character 定义常数字符
define e constant statement 定义常数语句
The mapping table also allows the user to convert source types to target types, or define constant mappings that set constant values to items in the target schema.
映射表还允许用户将源类型转化成目标类型，或定义常量映射 来将常量设置为目标架构中的项目。
So we define, then, equilibrium constant this way.
所以我们这样定义平衡常数。
My favorite is to use a configuration file and define a constant in it that holds the format string for the date function.
我最喜欢的方式是使用配置文件并在配置文件中定义一个常量，这个常量保留date函数的格式字符串。
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