Researchers are now examining a different tack: blocking the vas deferens using compounds that combine to form a barrier that can later be removed.

使用化合物来堵塞输精管，这些化合物结合在一起形成一道屏障，以后可以被移除。

But the procedure is largely irreversible: it involves stopping the flow of sperm from the testes by cutting conduits known as the vas deferens and sealing them or tying them off.

它包括通过切割被称为输精管的管道来阻止精子从睾丸流出，并将它们密封或打结。

So they have this ability to inject this gel into what's called the vas deferens, and it makes this plug, so then essentially it does the same thing, but you're not cutting it.

所以他们可以将这种凝胶注入输精管，然后形成一个塞子， 本质上它做了同样的事情，但你不必切割它。