Complex sentence: The weapon could was transported in 3 sections by a 15 ton Austro-Daimler road tractor M.12 with power of 100 HP, it could be assembled and readied to fire in around 50 minutes.
Split into simpler sentences: The weapon could was transported in 3 sections by a 15 ton Austro-Daimler road tractor M.12 with 100 horsepower. It could be assembled and readied to fire in around 50 minutes.