The CAS Registry Number itself has no chemical significance.

CAS注册号本身没有化学意义。

youdao

No candidate, regardless of their registration category, is permitted to register for theory of knowledge or the CAS programme more than once in the same session.

没有候选人，无论他们的注册类别，允许注册的理论知识或中科院项目不止一次在同一个会话。

youdao

Results: There was no obvious difference in controlling premature ventricular beats, but amiodaron was much better than propafenone in improving cardiac function and decreasing cas…

结果：两者对室早的控制无明显差异，而可达龙在心改善功能及降低病死率方面明显优于心律平。

youdao

With the rule change coming so late in the season, Cas had already done their recruiting and they had no room for me other than to offer me a one-year extension for nowhere near enough money.

BBC: Ready to rumble with Thunder