孵出后第30天，腹鳍芽出现；

By 30 days, the bud of ventral fin appeared;

第30天尾部采血测空腹血糖；

At the 30th day, the fasting blood sugar was determined;

现在是实验进行的第30个小时。

It's 30 hours into the experiment.

请看第30页，本公司的年度产品。

Please look on page thirty for our yearly production.

我想在第30层宽敞的统间办公室工作。

I want to work in a spacious , open plan office on the 30th floor!

持有根据该条例第30条发给的有效执业证书。

Hold a valid practising certificate issued under section 30 of the Ordinance.

在紧接的第30节里，我们看见这惨剧的应验。

The tragic fulfillment is there in verse 30.

在紧接的第30节里，我们便看见这惨剧的应验。

The tragic fulfilment is there in verse 30.

住在第九大道和第30街的大一居室里，还养了只猫。

They live with a cat in a large one-bedroom on Ninth Avenue and 30th Street.

而如果她的成绩是第30个百分位数，就是低于70%的考生。

If she scored in the 30th percentile, 70% of test takers scored above her.