If it proves possible to scale up his techniques, that would remove the source of the controversy over stem-cell research.

如果证明他的技术可能上规模，将消除对干细胞研究的争论来源。

youdao

The stem-cell controversy is also complex.

对于干细胞研究的争论也是极具复杂。

youdao

The ruling is expected to create further controversy about stem cell research, which critics view as a destruction of human life.

关于干细胞研究的裁决将来必然导致争论，在批评者来说，还是将这一研究视为人类生活的毁灭。

youdao

So the major controversy behind stem cell research, at least as far as I understand it,

干细胞研究背后的主要争议，就我的理解来说，

干细胞和伦理 - SpeakingMax英语口语达人

The main impetus isn't the prospect of gender selection, although that will add fuel to the fire, but the controversy surrounding embryonic stem cell research.

CNN: graphic

So the controversy over government funding of embryonic stem cell research quickly reaches into the unregulated domain of reproductive medicine.

CNN: graphic