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Testis , epididymis , and ductus deferens .

睾丸、副睾与输精管。

All it takes it one injection to the vas deferens , the tube that carries sperm from the testes to the urethra .

它只需要向输精管即携带精子从睾丸进入尿道的通道注射一管药。

The effect of guanethidine and local anesthetics on the electrically stimulated mouse vas deferens .

胍乙啶和局麻药对电刺激鼠输精管反应的影响。