我们的技术是直接可视化及套管针鞘的位置。

Our technique is done under direct visualization and trocar sheath in its position.

youdao

因为他们逃避刀剑，和出了鞘的刀，并上了弦的弓，与刀兵的重灾。

For they fled from the swords, from the drawn sword, and from the bent bow, and from the grievousness of war.

youdao

这就是弱胜强的潜伏优势所在：鱼儿是不应离开他们的深水的，长剑是不应离鞘的。

This is the subtlety by which the weak overcome the strong: fish should not leave their depths, and swords should not leave their scabbards.

youdao

That also happens through development, and in fact, it goes through development and even teenagers are not fully myelinated.

髓鞘的形成也同样发生在发展过程之中,实际上,髓鞘的形成贯穿整个发展过程,即便是青少年的髓鞘也并未完全发育完善

耶鲁公开课 - 心理学导论课程节选

Finally, remember myelination, where you sort of get this fatty sheath over your neuron to make it more effective?

最后,回想一下髓鞘的形成,你会在哪里长出脂肪鞘,去包裹神经元,使得神经元更有效率

耶鲁公开课 - 心理学导论课程节选

If this is the particular kind of axon that is 'myelinated', then it might have a layer of a special substance called myelin in sheathing the axon.

假设这是一种特殊的有髓鞘的轴突,它表面上会像鞘一样地包裹上一层,称为鞘磷脂的特殊物质

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