These impediments slow their speed, so they can enrich star-forming gas clouds with the ingredients for new generations of stars and planets.

重重障碍减缓了它们的速度，使它们能够以组成新一代恒星和行星的材料充实孕育恒星的气体云。

youdao

We also have intelligence from multiple sources that Iraq is attempting to acquire magnets and high-speed balancing machines; both items can be used in a gas centrifuge program to enrich uranium.

我们从多方获得情报指出伊拉克试图获得磁块和高速配平机械：两者都可用于进行气体离心分离机浓缩铀计划。

youdao

In truth, Saddam Hussein had a massive clandestine nuclear weapons program that covered several different techniques to enrich uranium, including electromagnetic isotope separation, gas centrifuge, and gas diffusion.

CNN: Transcript of Powell's U.N. presentation