sac词根词缀

sac

[sæk]

n.（动植物组织中的）囊，液囊;

abbr.缩写 = (US) Strategic Air Command 战略空军司令部。;

复数： sacs

例句:

1、

Pollen tube entered the embryo sac via one synergid and in it released two sperms.

花粉管经由一个助细胞进入胚囊,并在助细胞中释放两个精子.

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2、

Wall ingrowths occurred in central cell at micropylar region near embryo sac wall.

中央细胞在珠孔端与胚囊壁相邻的部位形成壁内突.

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3、

Several live worms were found in his conjunctiva sac.

后来在门诊中发现结膜囊里有数只活寄生虫.

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