Researchers want to make reversible vasectomies a one shot deal 研究人员希望使可逆输精管切除术成为一种一次性解决方案
The most reliable means of contraception for men--and one that cannot fail or be forgone in the heat of the moment--is a vasectomy. 对男性来说，最可靠的避孕方法是输精管结扎术，这是一种不会在一时的狂热中失败的方法。
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. 但这一过程在很大程度上是不可逆转的：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。
A reconnection, after a reconsideration, is no small task. 在重新考虑之后，重新建立联系并不是一项小任务。
Researchers are now examining a different tack: blocking the vas deferens using compounds that combine to form a barrier that can later be removed. 研究人员现在正在研究一种不同的方法：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。
Lab trials have involved four separate injections to establish a sperm-proof barrier, which could later be dissolved using a blast of focused, infrared light. 实验室试验包括四次单独的注射，以建立防精子屏障，之后可以用一束聚焦的红外光来溶解它。
