But by firing its three ion engines one at a time over 620 days — accumulating another 60 miles per each day — Dawn has reached its current astronomical speed and has no plans of slowing down.
They are, however, fearless and tireless, and will run at full speed into combat, their cannons extended, firing until they have reduced their targets to smoldering ruins.
但它们依然无所畏惧、不知疲倦，会全速奔入战场，伸出激光炮，开火，直到把敌人化为灰烬为止。
3
Driving a huge mass with a high speed to impact the tube of gun weapon is a feasible technology used to simulate the firing process.