The device provides precise measurements of blood flow in the brain, a known indicator of how the brain is working.
这种装置可以提供对于脑部血流的精确测量，脑部的血流是脑部运作状态的已知标志。
2
We can use an indicator with a pointer or a continuous recording device.
我们可以使用有指南针的指示器，或是连续记录的装置。
3
Wait until the indicator light shows a full charge (on the ADR6300, for example, the charging LED changes from amber to green) but do not yet turn the device back on.