We need to know the velocity of the neutron which we can talk about with energy and we need to know the time, when did this take place?
我们需要知道中子的速率，我们能够用能量来谈论它，我们需要知道时间，它什么时候会发生？
2
A ten-gram object thrown onto a neutron star — the reason being that this velocity becomes enormously high.
原因就在于-，速度，变得无穷大，若扔到中子星的物体。
3
To predict the rising velocity of hydrogen gas and the influencing factors, a suitable working fluid was determined for experimental simulation on the vold fraction of hydrogen in a neutron moderator.