sheath

英 [ʃiːθ]

美 [ʃiːθ]

n.  (刀、剑等的)鞘; (工具的)套; 护套; 护层; 护皮; 紧身连衣裙
v.  包; 盖

复数：sheaths　

TOEFLGRETEM8化学

Collins.1 / BNC.15335 / COCA.12614

牛津词典

noun

• （刀、剑等的）鞘；（工具的）套
  a cover that fits closely over the blade of a knife or other sharp weapon or tool
• 护套；护层；护皮
  any covering that fits closely over sth for protection
• 护套；护层；护皮
  any covering that fits closely over sth for protection
• 紧身连衣裙
  a woman's dress that fits the body closely

柯林斯词典

• (刀、剑的)鞘，套
  Asheathis a covering for the blade of a knife.
• 保险套;避孕套
  Asheathis a rubber covering for a man's penis and is used during sex as a contraceptive or as a protection against disease.

英英释义

noun

• a dress suitable for formal occasions
  Synonym:cocktail dress
• a protective covering (as for a knife or sword)
• an enveloping structure or covering enclosing an animal or plant organ or part
  Synonym:case

双语例句

• Objective: to provide anatomic data for treatment of thoracic nerve root sheath diseases.
  目的：为临床胸神经根鞘性疾患的诊治提供解剖学基础。
• Objective Research on domestic sheath autonomous formula and its application on SE-9000 automatic blood instrument.
  目的研究国产鞘液的自主配方及其在SE-9000全自动血液分析仪上的应用。
• A white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers.
  一种白色油脂物质，形成一些神经纤维轴突外包裹的一层髓鞘。
• Objective: To study the morphological changes of tissue engineering synovialized tendon after transplanted within the flexor digital sheath.
  目的：观察用组织工程学方法形成的滑膜化肌腱鞘内移植后的形态变化。
• In this paper, the establishment of the standard for the cables for wind power generation, design of the conductor construction and selection of the materials for insulation and sheath are presented.
  文中介绍了风能发电用电缆标准的制定、导体结构的设计，以及绝缘和护套材料的选择，最后还介绍了几项特殊性能试验方法及要求。
• Objective: To investigate the effects and safes of ultrasound-assisted liposuction by the probe with the sheath.
  目的：探讨带有外鞘的超声探头吸脂术的安全性和有效性。
• At the same time, sheath of polyolefin processing performance and prone to defects and discussed how to resolve.
  同时也对聚烯烃护套的性能和加工容易出现缺陷及如何解决进行了论述。
• Another key factor is the insulating fatty sheath encasing neuron fibres, which affects the speed of electrical signals.
  另一个关键的因素在于围绕神经纤维的隔离脂肪鞘，它能影响电信号的速度。
• Losses in cable sheath and armor were moved into cable conductor by thermal circuit method.
  利用热路的方法将电缆金属套损耗和铠装层损耗归算到电缆导体。
• It shows one sheath around the vascular bundles.
  它显示出在维管束周围的鞘状构造。