We are basically spinning down the blood.

我们基本上是旋转血液。

Electron spin is a superposition of spin up or spin down so we can label spin up zero and spin down one.

电子自旋是向上自旋或向下自旋的叠加， 因此我们可以将向上自旋标记为零， 向下自旋标记为 1。

Though I guess you could also have spins down to -1 if the black hole is spinning in the opposite direction from the accretion disk.

当黑洞自旋与吸积盘旋转方向相反时，这个数也可以降到-1。

Now, if the results from this " dipstick test" are abnormal, doctors will sometimes spin down the urine sample, putting it in a centrifuge to separate out some of its components.

现在，如果这种“试纸测试” 的结果不正常，医生有时会将尿样离心， 将其放入离心机中以分离出其中的一些成分。