在曝光信号发出之前，灯丝电流和X线管电压都要被检查核对。

The filament current and X-ray power supply voltage are checked before the exposure signal can be transmitted.

youdao

在曝光信号发出之前，灯丝电流和X线管电压都要被检查核对。

The filament current and X-ray power supply voltage are checked before the exposure signal can be transmitted.

youdao