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sieve tube 【植物;植物學】篩管。

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They are common in many situations , for example as gland cells and epidermal cells , and in xylem and phloem parenchyma , where they are concerned with active loading and unloading of vessels and sieve tubes 許多情況下都有傳遞細胞發揮作用,例如:腺細胞和表皮細胞,還有木質部和韌皮部的薄壁細胞,該處導管和篩管的主動裝填和排空都與傳遞細胞有關。

Cyclosis ( cytoplasmic streaming ) the streaming of cytoplasm in a circular motion around the cell observed in some plants , particularly young sieve tube elements 胞質環流(胞質運動) :在一些植物細胞特別是在幼篩管分子中觀察到的細胞質圍繞細胞的環形流動的現象。

The sand control sieve tube of the model fs - 1 2 , is a kind of oil well sand control new high - tech product that our company developed Fs 1 2型防砂篩管,系我公司研制的一種油井防砂高新技術產品。

Sieve tube of the sand control 不銹鋼金屬纖維防砂篩管