sheaths

英 [ʃiːðz]

美 [ʃiθs]

n.  (刀、剑等的)鞘; (工具的)套; 护套; 护层; 护皮; 紧身连衣裙
sheath的第三人称单数和复数

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.

双语例句

• Tall grass with smooth bluish leaf sheaths grown for hay in the United States.
  高草，叶鞘光滑带蓝色，在美国用作干草。
• But the official view was that the rods were still mostly intact – and radioactive material was safely contained inside their zirconium sheaths.
  但官方的观点是，燃料棒大体上仍然保持完好，放射性物质仍然安全地包裹在燃料棒以锆制成的外壳之中。
• Since the filaments that connect distant nerve cells are surrounded by fatty sheaths which restrict the movement of water, such molecules tend to move along a filament rather than out of it.
  由于连接神经细胞的花丝被脂肪硝所包围，而脂肪硝会限制水分子的运动，所以水分子会沿着花丝运动。
• Plants with a mild phenotype formed normal leaf sheaths and blades, but lacked ligules and showed diffusion of the blade – sheath boundary.
  轻度的植株能有正常的叶及叶鞘，但没有叶舌，叶与叶鞘的边界弥散。
• Their claws are kept sharp by being retracted into sheaths.
  它们的爪子平时缩进皮鞘里，藉此保持锐利。
• The utility model relates to an ice and snow shovel for road surface, comprising shovels, shovel sheaths, springs and a connecting plate.
  本实用新型为一种路面冰雪铲除装置，包括换锹、锹套、弹簧、连接板。
• Specifically, the insulating myelin sheaths around the axons of neurons the parts responsible for transmitting information to other neurons get smaller.
  具体来说，神经元轴突周围的绝缘性髓鞘――负责将信息传送至其他神经元的部分――变小了。
• Ovicidal trait in DH lines was phenotyped by necrotic symptoms on the leaf sheaths due to ovicidal response.
  DH株系中的杀卵特性是通过叶鞘上杀卵反应产生的坏死症状表现的。
• Tenosynovial giant cell tumors arise from synovium of joints, bursae, or tendon sheaths, and are classified into localized and diffuse types based on the growth pattern and clinical behavior.
  腱鞘巨细胞瘤可发生于关节滑膜、滑囊或腱鞘，依据其生长方式和生物学行为，可分成局限性和弥漫性腱鞘巨细胞瘤两类。
• The lodging resistance and chemical component contents in culm and leaf sheaths were analyzed by using japonica rice cultivars with different lodging resistance during grain filling.
  分析了不同抗倒类型的粳稻品种灌浆成熟过程中茎鞘抗倒伏性和化学成分含量的动态变化。