sheaths

n.

（刀、剑或工具尖锐部分的）鞘( sheath的名词复数 )；（男用）避孕套；（植物或动物器官的）鞘状（包覆物）；外层覆盖（物）

leaf sheath叶鞘

tendon sheath[解]腱鞘

cable sheath电缆包皮层

1. Put the dagger back in its sheath.
   把短剑插回鞘内。
2. As he stepped forward, it dropped out of its sheath.
   约押前行，刀从鞘内掉出来。
3. The continuous filament polyester sheath is braided over a continuous nylon fiber core.
   连续细丝聚酯护套被编织物包上连续的尼龙纤维核心上方。
4. The polyester sheath provides added protection for ultraviolet light and from chemicals that are harmful to nylon.
   聚酯护套提供增加的保护紫外线和从化学制品对尼龙伤害。

Functional anatomy of the brachial plexus sheaths
Guidewires and thin film catheter-sheaths and method of making same
Ion energy distributions in rf sheaths; review, analysis and simulation
Analysis of cumulative strain in tendons and tendon sheaths.
TRANSPORT OF AIR ALONG SHEATHS OF PULMONIC BLOOD VESSELS FROM ALVEOLI TO MEDIASTINUM: CLINICAL IMPLICATIONS
The Interaction of Electron and Positive Ion Space Charges in Cathode Sheaths
Sheath thickness and potential profiles of ion‐matrix sheaths for cylindrical and spherical electrodes
The structure of scytonemin, an ultraviolet sunscreen pigment from the sheaths of cyanobacteria
Structure of scytonemin, an ultraviolet sunscreen pigment from the sheaths of cyanobacteria. Experientia
Schwann Cell–Derived Desert Hedgehog Controls the Development of Peripheral Nerve Sheaths