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

• The results supported that rice resistance to sheath blight was a hereditable character and selection to resistance was effective.
  表明水稻对纹枯病的抗性是可遗传的性状，对抗性的选择有效。
• 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。
• 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。
• Effect of elastic modulus of stratum and cement sheath on casing strength
  地层和水泥环弹性模量对套管强度的影响分析
• She appears wearing a magenta silk sheath dress by Jason wu, who also designed her inaugural gown.
  在封面照上，米歇尔身穿一袭由设计师吴季刚为其设计的绛红色紧身丝质裙装。她在奥巴马就职典礼上所穿的礼服就出自吴季刚之手。
• In this paper, sheath scaling for PIII into a spherical target is investigated using numerical methods.
  本文对球形靶的鞘层尺度进行了数值求解、讨论了注入参数对鞘层尺度的影响。
• 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 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。
• 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。
• 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。