Means the same thing as continues a short space.
Galba was a weak and insignificant king. The 7th king will be the cap stone of the 7 kings prophecy.
The 7th king does not come to power until right before the 70th week, the 7 years. This can be determined by the crowns, no crowns on the heads in Revelation 17, 12, 13.
In Revelation 17, there are no crowns on the 7 heads, as the 7 king prophecy was incomplete in John's day, awaiting the arrival of king 7, the cap stone king.
In Revelation 12, aside from the first five introductory verses to identify the woman in the rest of the chapter as Israel, the seven years are found in Revelation 12:6, the 1260 days, followed by the time, times, half times of Revelation 12:14.
The head in Revelation 12 have their crowns indicating that king 7, the cap stone king, has come to power, completing the prophecy of the seven kings.
In Revelation 13, one of the heads has been mortally wounded, but healed. None of the heads have their crowns, because will the death of king 7, the cap stone king, the prophecy of the 7 kings is over at that point.
king 7, healed from the death wound, will have come back to life as the beast, king 8, to continue, or remain if you want to choose that word, the short space of 42 months, in Revelation 13:5.