The technique of transition trajectory planning and guidance for OBV is studied.

研究了轨道轰炸飞行器的过渡段轨道设计与制导方案。

The tech tycoon tweeted that Aliens built the pyramids obv, which has now been retweeted almost 85,000 times.

这位科技大亨在推特上说：“显然金字塔是外星人建的”，现在已经被转发了约85,000次。