He only had some ammeter and an ampoule.

他有些安培计个安瓿（针剂）。

Finally, we saw how to measure voltage and current in a real circuit using voltmeters and ammeters.

最后，我们了解了如何使用压表流表测量实际路中的压流。

This is known as an ammeter, and it measures the current in Amperes by connecting in series with the circuit.

这被称为流表，通过路串联来测量安培流。

Attaching the ammeter, a device with near-zero resistance, in parallel with another resistor, will cause nearly all the current to run through the ammeter, possibly damaging it.

将流表（种阻接近零的设备）另个阻器并联将允许几乎所有流流过流表，可能导致损坏。