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

雪上加霜的是，那个体甲上覆盖着保护性的角质鞘。

The coating smoothes them down and adds a lubricating and protective sheath to keep your hair feeling healthy.

这种涂层可以使头发变得光滑，并相当于增加了一层润滑和保护的防护套，可以让你的头发保持健康。

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的保护性鞘膜，能快速传导神经冲动。

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的保护性鞘，使轴突可以快速传递电冲动。

If you wanna eat chips without getting your hands dirty, turn a Ziploc bag into a protective sheath.

如果您想在不弄脏手的情况下吃薯片，请将 Ziploc 塑料袋变成保护套。

They're kept out of harm's way within these protective sheaths, but when he needs to use them, the Mega Lion would swing them into action, like switch-blade knives, and could slice up prey.

它们缩回到保护性鞘膜内时不会受到损坏，不过当拟狮要使用它们时，就会把它们探出来，就像弹簧折刀一样，还能切开猎物。