BACKGROUND: Presently, some problems still exists during establishment and culture of embryo multipotential stem cells, such as low rate of establishment, low rate of stem cells with normal karyotype.是什么意思_BACKGROUND: Presently, some problems still exists during establishment and culture of embryo multipotential stem cells, such as low rate of establishment, low rate of stem cells with normal karyotype.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句