This forms what's called the rectus sheath.

这就形成了所谓直肌鞘。

But each claw has a sheath which covers it and keeps it sharp.

但是每个爪子都长着" 爪套" （学名是" 球套" ）, 可以盖住爪子, 不让爪子磨秃。

Myelin is a fatty sheath that insulates an axon, preventing electrical currents from leaking out.

髓鞘质是一种脂肪鞘，把轴突隔绝起来，以防止电波泄漏。

Hey, Luke. Look. Do you wanna make a comb sheath?

嘿，卢克。瞧啊。想做个梳套吗？

" Her too" . Davos slid the dirk back into its sheath.

" 对，还有她。" 戴佛将匕首收回鞘中。

So Ebbers, you've now got shallot tips and a couple of the sheaths.

埃，现在有了葱尖和一些葱鞘。

He was afraid at first that it might be rusty and stick to the sheath.

开始他担心宝会锈在鞘里拔不出来。

Swept along by its propeller, the Nautilus was traveling through a sheath of flashing light.

诺第留号帆轮推动，是在电光熔炉中行驶了。

Myelin is the protective sheath that surrounds the axons of the peripheral neurons allowing them to quickly send electrical impulses.

髓鞘质是包绕在周围神经轴突上保护性鞘，使轴突可以快速传递电冲动。

Absence of myelin sheath means that the nerve impulses become slow and sluggish.

失去髓鞘后，神经冲动传导会变得迟缓。

Ser Loras Tyrell slammed his sword back into its sheath.

洛拉·提利尔爵士将长" 砰" 一声，收回鞘中。

Uranium fuel rods contain tiny pellets of specially prepared uranium encased in a sheath of zirconium alloy.

铀燃料棒含有若干微型特制铀芯块，这些芯块被包裹在锆合金护套里。

An unsealed affidavit says DNA matches Bryan Kohberger to a knife sheath found at the crime scene.

一份公开宣誓书显示，布莱恩·科格DNA与犯罪现场发现刀套上DNA相符。

Myelin is the protective sheath that surrounds the axons of neurons, allowing them to quickly send electrical impulses.

髓磷脂是神经轴突周围保护性鞘膜，能快速传导神经冲动。

The cat has sheaths or cases into which it draws back its claws when they are not wanted.

猫在不用爪子时候, 可以把爪子缩回到“爪鞘”或者“爪套”里面, 这个部分学名是“球套”。

Try a sheath dress in navy, brown, charcoal, or red, too. Just make sure it's a solid color.

也可以尝试一下藏青色，棕色，木炭色或红色。但是要确保是纯色。

How could you not? You combined the two things that kids love the most- combs and sheaths. I'm kidding!

怎么可能不愉快呢？把孩子们最爱两样东西结合到了一起——梳子和套子。我开玩笑！

STEP 1 Invest in what fashionistas call the LBD, or Little Black Dress: A simple, elegant sheath.

投资购买一条小黑裙，时尚达人称为LBD：选择简单优雅紧身款。

Surrounding the axon is a myelin sheath, which is actually just insulation.

轴突周围是髓鞘，实际上只是绝缘层。

And to make matters worse, that body amour was covered in a protective sheath of keratin.

雪上加霜是，那个体甲上覆盖着保护性角质鞘。