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 productuses 4 pairs, Insulation is HDPE insulator, and sheath is PVC.
  1本产品规格为4对，绝缘采用高密度聚乙烯绝缘料，护套为聚氯乙烯护套料。
• A sheath for a sword or dagger or bayonet.
  剑、匕首或刺刀的鞘。
• 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。
• 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。
• 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。
• 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。
• He found a wood-and-leather sheath that fit and slipped the dirk inside.
  他又找到了一个皮木做的合适刀鞘然后将匕首插了进去。
• The cells of leaf bundle sheath contain numerous chloroplasts and starch grains.
  叶的维管束鞘细胞含有许多叶绿体和淀粉粒，可以断定它是四碳植物。
• 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。
• He lowered it and drew his hunting-knife from its beaded sheath at his hip.
  他放下枪，从屁股后面的镶珠刀鞘里拔出猎刀。他一刀砍下去，砰的一声，把刀子都震飞了。