| 1. | Keep and reproduce strain as approved sops
按照批准的程序保存菌种，执行菌种传代。 |
| 2. | Strains were passaged less than 10 times
低传代分离株传代少于10次。 |
| 3. | By the method of passage , we further purified the mmscs cultures
培养至10 12大细胞达到80融合，进行传代。 |
| 4. | The isolation and cufure of the ductal cells of smg in vitro
实验结果一、领下腺细胞的分离纯化与体外培养、传代。 |
| 5. | Efficient and stable expression of consensus interferon in recombinant e . coli
复合干扰素在大肠杆菌中的高效表达与传代稳定性 |
| 6. | Among all pgc - derived cultures , it was found that one derivation under went 12 passages
具有分化潜能的pgcs能在体外连续传代培养达12代。 |
| 7. | Methods human umbilical vein endothelial cells ( huvecs ) were cultured in vitro
方法体外培养人脐静脉内皮细胞，通过传代形成细胞的衰老模型。 |
| 8. | Dissociation and culture research of porcine donor cell and cell subculture in somatic cell nuclear transfer
猪核移植供体细胞的分离培养及传代的研究 |
| 9. | The properties of high productivity of the three strains were proved to be stable after 5 continual progeny tests
经5次传代，筛选所得的三个菌株保持了较好的高产稳定性。 |
| 10. | However , this technique is still in its infancy : a continuous cell line has yet to be established
尽管取得了一定的进展，但稳定的传代细胞系的建立仍是世界范围内的难题。 |
