sieve tube element中文,sieve tube element的意思,sieve tube element翻译及用法

2026-03-22 09:27 浏览次数 25

sieve tube element

英[siv tju:b ˈelimənt]美[sɪv tub ˈɛləmənt]

Proton gradient: Solid green: sieve tube; dashed green: sieve tube plates; light pink: companion cell; dark pink: nucleus; yellow: nutrients

sieve tube element 英语释义

英语释义

    1. a thin-walled elongated living cell that has no nucleus at maturity, is continuous with other similar cells by protoplasmic strands which pass through the perforations of specialized sieve plates, probably functions primarily in the translocation of organic solutes, and is the basic element of the sieve tube — compare sieve cell

sieve tube element 例句

英汉例句

  • sieve tube element

    筛管分子

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