In the epididymis, the tube in which mature sperm are stored, it is a fifth of the usual level.

在储存成熟精子附睾管中，碳酸氢盐浓度是通常水分之。

Once through the duct they enter the inferior epididymis, where they gain mitochondria so they'll have energy to swim hard at a moment's notice.

旦通过管道，它们进入下附睾，在那里它们获得线粒体，这样它们就有能量在瞬间用力游泳。

The bulk of the epididymis consists of the enormous duct of the epididymis, which, believe it or not, could be uncoiled to stretch about six meters — though I don't suggest doing that.

大部分附睾由巨大附睾导管组成，信不信由你，这个导管可以开 6 米——虽然我不建议这么做。

From there, the sperm — although still immobile — leave the testes, by way of the epididymis, a long, tangled set of tubes behind the testes where they'll spend the next few weeks gaining their mobility.

从那里，精子——尽管仍然不动——通过附睾离开睾丸，附睾是睾丸后面套又长又纠结管子，在那里它们将在接下来几周里获得流动性。

At this point they have the hardware to swim, but still lack the ability to actually move on their own, a skill kept under wraps until they leave the epididymis and get activated by a series of glandular secretions.

在这点上，它们有游泳硬件，但仍然缺乏自己实际移动能力，这种技能直保密，直到它们离开附睾并被系列腺体分泌物激活。

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，在射精过程中，精子从附睾流过输精管，输精管是种在膀胱后面行进管道，与精液腺管道连接，形成射精管。