dummy variable

• n. 虚变数；名义变数

dummy variable的用法和样例：

例句

用作名词 (n.)

1. Speed was a variable in the experiment.
   在该实验中速度是个变数。
2. This assumes that you do not yet have this variable set in that file.
   在此则假设了您尚未在该档案中设定这个变数。