sheath
sheath
英[ʃi:θ]美[ʃiθ]
n.护套，鞘，叶鞘，紧身装；
复数：sheaths;
例句
a sheath for a sword剑鞘
Palisade tissue is rich in saliferous vacuoles, while vascular bundle sheath is obvious.栅栏组织富含含盐液泡泡, 维管束鞘明显.
Conclusion Saber sheath trachea is a sign of rather severe COPD.结论剑鞘气管是较重的copd的标志.
To draw from or as if from a sheath or scabbard.拔出从剑鞘或*套中或仿佛从剑鞘或*套中拔出.
This suit of clothing is more inexpensive than that sheath.这套衣服比那套便宜.
He drew his sword from its sheath.他拔剑出鞘.
the sheath around an electric cable电线护皮
Coleorhiza ( pl . coleorhizae ) The protective sheath surrounding the radicle in grasses.胚根鞘:保护幼根的鞘状结构.
Both root and root cap are covered by a sheath - like structure called the coleorhiza.根和根冠被一鞘 状 结构,即胚根鞘所覆盖.
Coleoptile A sheath like structure that protects the developing plumule in grasses.用来保护发育的胚芽的鞘状的结构.
同义词
sheath的同义词之：
skincoveringshell柯林斯高阶英汉双解学习词典释义
N-COUNT
(刀、剑的)鞘，套
A sheath is a covering for the blade of a knife.
N-COUNT
保险套;避孕套
A sheath is a rubber covering for a man's penis and is used during sex as a contraceptive or as a protection against disease.
英汉词典释义
n.
(刀、剑或工具尖锐部分的)鞘、套
a sheath for a sword剑鞘(男用)避孕套
(植物或动物器官的)鞘状(包覆物)
外层覆盖(物),外包物
英英词典释义
Noun
1. a protective covering for a knife or sword
2. an enveloping structure or covering enclosing an animal or plant organ or part
3. a dress suitable for formal occasions
行业词典
公路科技： 套管；
医学： 鞘：围绕包裹组织的管状结构；护套；
土木工程： 套管；
生物学： 鞘；
电力： 护套；
电工： 护套；又称 :护套(jacket )；
铁道： 套管；护套；
