They fly at first cosmic velocity.

他们以第一宇宙速度飞行。

youdao

They fly at first cosmic velocity.

他们以第一(宇)宙速度飞行。

youdao

The implications of the first cosmic velocity and the second cosmic velocity are discussed. the blurred knows relative to the two velocities are cleared.

讨论了第一和第二宇宙速度的含义，澄清了与这两个速度有关的一些模糊认识。

youdao

These are thought to be the sources of cosmic rays, which are high-velocity charged particles (mainly protons) that constantly bombard the earth.

ECONOMIST: Neutrino astronomy: Deep and meaningful | The