大孢子四分体为线形，合点端功能大孢子发育成为蓼型胚囊。
Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.
目的：探讨结肠运输试验在慢性功能性便秘诊断及分型中的价值。
Objective: To study the value of colonic transit study in diagnosis and classfication of chronic functional constipation.
中医辩证分型表明，NK细胞功能下降以气阴两虚组为明显，而T细胞亚群的改变以气虚组为显著。
The Syndrome Differentiation of TCM indicated that NK cell activity decreased obviously in the Qi-Yin-Deficiency group, while T lymphocyte subsets changed significantly in the Qi-Deficiency group.
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