1.Computer aid vaccine design (CAVD) is a new area of biom edical engin eering.

1.计机辅助疫苗设计是生医学工程研究的一个领域。

2.Embryonic stem cells have been the focus in tissue engin eering,dev elopmental biology,drug development and gene research.

2.胚胎干细胞已成为组织工程、发育生学、发及基因研究的热点。