How does 代替する operate?
I checked a few dictionaries and most of them list examples like
which don't really involve an を.
According to the dictionary it's a 他 verb. Am I correct to say that XがYを代替する means X replaces Y? And in a sense it's a 他 verb because X as a subject is doing the action of replacement onto Y (albeit with itself)?
他の部分 replaces その機能 (the broken part)?
What prompted me to ask this question was this line:
I don't think I fully understand the relations in this sentence. I feel like I know 彼らは人間が生存可能な環境を提供し続ける都市を築きました, meaning "They built a city that continues to provide an environment possible for humans to exist in", but I don't quite understand how 水や空気 エネルギーの循環を代替し relates to the subject and various objects in the sentence (ie who did the replacing, what was replaced with what).