Methods:Inspected the effect to the content of gastrodin and the yield of seed stem in the different culture medium though the way of orthogonal experiment.

方法：采用正交试验考察了无土培养基不同配方对袋栽天麻天麻素含量及产量的影响，观察了海拔、萌发菌种类等因素对天麻种麻质量的影响。

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Planting density is the major factor that affected production of sweet sorghum stem and Seed and saccharinity.

种植密度是影响甜高粱茎，种子和糖精含量的主要因素。

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The tumor shrinks at first, but stem cells within the tumor survive and eventually seed the growth of new, more aggressive tumors.

起初肿瘤变小了，但是其中的肿瘤干细胞存活下来，最后形成新的侵袭性更强的肿瘤。

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