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管的管道来阻止子从睾丸流出，并将它们密封。

When that time comes, during ejaculation, the sperm flow from the epididymis through the vas deferens, a tube that travels up behind the bladder and joins with the duct from the seminal gland to create the ejaculatory duct.

当这个时间到来时，射过程中，子从附睾流过管，管是一种膀胱后面行进的管道，与液腺的管道连接，形成射管。

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

使用化合物来堵管，这些化合物合一起形成一道屏障，以后可以被移除。

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.

所以他们有一种能力， 可以将这种凝胶注入所谓的管中，形成一个堵头， 这样基本上就达到了同样的效果，但你并没有切断它。

For biosex males, there’s really only condoms and vasectomies, where a surgeon shuts the vas deferens tubes that let sperm travel up and out from the testicles.

对于生理性别为男性的个体， 其实只有避孕套和管扎两种方法，后者是由外科医生关闭让子从睾丸出来并向上移动的管。

Another developed a sperm granuloma, which is basically a lump of sperm outside the vas deferens that could become painful.

另一个形成了子肉芽肿，这是一种管外的子团块，可能会变得疼痛。