These tubules are the sperm factories, made of a stratified epithelium surrounding a central fluid-filled lumen.

这些小管是精子工厂，由围绕充满体央管腔分层上皮组成。

This means that phosphate is left in the lumen and eventually gets sent out in the urine.

这意味着磷酸盐留在腔内，最终通过排出。

Also, though, these vessels can relax or vasodilate, and the lumen's diameter increases, which allows more blood flow.

不过，这些管也可以舒张，即管舒张，以扩大管腔直径，让更多流过。

But in this case, the sperm develop on the outer edge of the tubule, and progress inward toward the lumen.

但是在这种情况下，精子在小管外缘发育，并向内腔前进。

So this means that phosphate is left in the lumen and eventually gets sent out in the urine.

这意味着磷酸盐留在了管腔内，最终通过排出体外。

Bicarbonate helps neutralize the acidic chyme, and raising the pH in the intestinal lumen also helps digestive enzymes work more effectively.

碳酸氢盐能酸性食糜，还能提高肠腔内pH值；这也可以提高消化酶活性。

Different varieties of tracheostomy tubes include cuffed, non cuffed, double lumen tubes, tubes with speaking valves, metallic tubes, and so on.

不同种类气管造口管包括带套囊管、没有套囊管、双腔管、带发声阀管、金属管等。

Having little water in the lumen, creates a relatively high potassium concentration in the lumen.

水份较少时，管腔钾离子浓度就会相应升高。

A narrow lumen means less blood and oxygen gets delivered to the kidney, resulting in ischemic injury to the nephron's glomerulus.

管腔狭窄意味着对肾供供氧减少，导致肾单位肾小球缺性损伤。

Now, that calcium's still in the lumen, but parathyroid hormone also affects the distal convoluted tubule and increases calcium reabsorption.

这时，钙仍然在腔内，但甲状旁腺激素也会影响远曲小管，增加对钙再吸收。

An equivalent CFL will get you way more, between 55 and 70 lumens per watt.

等效 CFL 将为您提供更多，每瓦 55 至 70 流明。

They can put out up to 100 lumens per watt.

它们可以输出高达每瓦 100 流明。

We call these luminescent substances, from the ancient Roman word, lumen, which means light.

我们将这些发光物质称为“发光物质”，这个词源自古罗马语“lumen”，意思是光。

It's a daylight therapy lamp, which goes up to 20,000 lumens.

这是一款日光治疗灯，亮度可达20000流明。

So the lumen, folks, is the cavity, the empty cavity of the gut.

所以，腔体，朋友们，就是肠道空腔。

I mean, most nutrients, micronutrients, are absorbed in the lumen of the stomach.

我意思是，大多数营养物质，微量营养素，是在胃腔内被吸收。

The old, former world's brightest flashlight has a hundred thousand lumens.

曾经旧款世界最亮手电筒拥有十万流明。

You have two swords fusion and lumen It might be luminous.

你有两把剑，融合卢门，可能是发光。

Now, that calcium's still in the lumen, though, but parathyroid hormone also affects the distal convoluted tubule and increases calcium reabsorption.

现在，钙仍然在腔内，但是甲状旁腺激素也会影响远曲小管增加钙再吸收。

These cells will be all lined up and then they will have a lumen.

这些细胞会排列整齐，并且它们会有个管腔。