sheath

/ʃi:θ/ uk　 词频 #12614

托福 TOEFL英语专业八级

sheath 是什么意思

中文释义

n. 鞘, 叶鞘, 翅鞘

[化] 护套

英文释义

n. a protective covering (as for a knife or sword)

n. an enveloping structure or covering enclosing an animal or plant organ or part

sheath 的真实例句

以下例句摘自真实英文文章，看看 sheath 在自然语境里怎么用：

The myelin sheath is a protective coating that surrounds nerve fibers in the brain and spinal cord.

—— Scientists discover gene that helps the brain repair itself

To test this idea, Zhang and his team examined whether the mutation could protect the myelin sheath.

—— Scientists discover gene that helps the brain repair itself

These metabolites support the growth and maturation of oligodendrocytes, which in turn helps rebuild the myelin sheath.

—— Scientists discover gene that helps the brain repair itself

Stephen Hauser: Much like an electrical wire that needs a sheath in order to protect it from short circuiting.

—— Elizabeth Roboz Einstein—the determined genius behind a multiple sclerosis breakthrough

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