The amount of current that’s flowing is measured in amperes, and a current of only 20 milliamps can cause someone to lose control of their diaphragm and stop breathing.

流流量以安培计，仅 20 毫安流就会导致人去对隔膜控制并停止呼吸。

So, you have a superconducting wire that goes straight down like this and on your loop branch, you have a little ammeter, something that measures current.

所以，你有一向下延伸超导线， 在你环路分支上，有一个小小安培计， 用来测量流。