photodiode dark current

例句：

1. 1. The photodiode's dark current is measured to determine its sensitivity.
   光电二极管的暗电流被测量以确定其灵敏度。
2. 2. Dark current can be a problem in some electronic devices.
   在某些电子设备中，暗电流可能是一个问题。
3. 3. The dark current of the device was unexpectedly high.
   设备中的暗电流出乎意料地高。