那么如果量程气是75，量程2将被选择为校准量程。

Then if 75 is set as the span gas, Range 2 is selected for calibration.

youdao

那么如果量程气是75，量程2将被选择为校准量程。

Then if 75 is set as the span gas, Range 2 is selected for calibration.

youdao