编辑：行星堡垒也造成溅射伤害。

EDIT: The PF does splash damage as well.

youdao

对行星堡垒发动攻击一般都需要不少单位。

To mount an attack on a Planetary Fortress takes quite a good number of units.

youdao

行星堡垒的前提建筑是工程湾，轨道指挥部的前提建筑是兵营。

The PF prerequisite building is the Engineering Bay and the Orbital Command prerequisite building is the Barracks.

youdao