youdao

In lines 22 through 34 you select an operating system that is not NULL from the list obtained in previous step.

从第22行到第34行从上一步中获得的数组中选择一个不为空的操作系统。

youdao

The stavudine was prepared from 5-methyluridine via six steps in 34% overall yield, in which the key step is the selective acylation of 5-methyluridine by propionyl chloride.

该路线以5-甲基尿苷为起始原料，关键步骤是5-甲基尿苷和丙酰氯的选择性酰化反应，六步反应总收率为34%。

youdao

The 34-year-old took the unusual step of letting the club's supporters know with a posting on a fans forum on the club website.

BBC: Chris Latham to leave Worcester Warriors this summer

But the Portsmouth fighter decided to step up his efforts in the final round and forced referee Richie Davies to rescue Spartacus after 34 seconds.

BBC: Dominant Oakey crushes Spartacus