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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
      1. 护套;护层;护皮
        any covering that fits closely over sth for protection
        1. 护套;护层;护皮
          any covering that fits closely over sth for protection
          1. 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.
              1. 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
                  1. a protective covering (as for a knife or sword)
                    1. an enveloping structure or covering enclosing an animal or plant organ or part
                        Synonym:case

                      双语例句

                      • A sheath for a sword or dagger or bayonet.
                        剑、匕首或刺刀的鞘。
                      • A protective sheath enclosing the shoot tip and embryonic leaves of grasses.
                        胚芽鞘裹在草的芽尖和胚芽外层的保护鞘。
                      • He drew his sword from its sheath.
                        他拔剑出鞘。
                      • 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。
                      • 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 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。
                      • All the results demonstrated pyrenoid and starch sheath were closely related with photosynthetic function.
                        这些结果均表明条浒苔蛋白核(淀粉鞘)单细胞绿藻的蛋白核相同,具有光合作用功能。
                      • 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。
                      • Lead in sheath heater of Microwaves.
                        微波炉发热器护套中的铅。
                      • 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。