这颗子弹的弹道非常精准。

The bullet's trajectory is very precise.

他们在模拟导弹的弹道。

They are simulating the missile's trajectory.

科学家们正在研究火箭的弹道。

Scientists are studying the rocket's trajectory.

计算弹道需要考虑很多因素。

Calculating the trajectory requires considering many factors.

子弹的弹道轨迹被仔细计算了。

The ballistic trajectory of the bullet was carefully calculated.