Conclusion: 4t1 cells can grow and form spheres in serum-free suspension medium containing growth factor, and they contain breast cancer stem-like cells, which can be enriched when cultured in SFM.

结论：乳腺癌4t 1细胞可在含多种生长因子的SFM中悬浮生长并形成细胞球，4t1细胞中含有的乳腺癌干细胞样细胞可通过SFM培养法富集。

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The soaked soil is in a state of fusion, as it were; all its molecules are in suspension in soft medium; it is not earth and it is not water.

土地浸湿以后象已溶解，它的所有分子都处于稀软的状态中，它已不是土地，但也不是水，有时还很深。

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While stirring this concentrated suspension, a small aliquot is removed and transferred to the optical measurement cell containing the blank dispersing medium.

当搅拌该浓缩的悬浮液时，将等分试样转移至含有空白分散介质的光学测量比色皿中。

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