Objective: To find out a method of extraction and purification of bone morphogenetic protein (BMP) from osteosarcoma cell conditioned medium, and evaluate the biological activity of BMP.

目的探索从骨肉瘤细胞条件培养基中提取骨形态蛋白（BMP）的方法，并测定其生物学活性。

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Objective: To find out a method of extraction and purification of bone morphogenetic protein (BMP) from osteosarcoma cell conditioned medium, and evaluate the biological activity of BMP.

目的探索从骨肉瘤细胞条件培养基中提取骨形态蛋白(BMP)的方法，并测定其生物学活性。

youdao

He took the drug patients were to take and underwent the stem cell extraction process.

他服用病人将服用的药物，并且接受干细胞提取过程。

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But critics of human cloning and stem cell extraction methods essentially believe a human egg that begins to divide for any reason should be considered an embryo, and a potential person, that deserves protection under the law.

CNN: Democrat blocks Senate debate of cloning ban

Another restraint on producing large quantities of algae is that its cell walls are difficult to break, making extraction of the oil inside an energy intensive process.

BBC: Bath's Roman Baths algae could fuel cars