Yes "it" may be used in all of those constructions and Many others, but soem on the examples could use changes. For An electrical pump rocket motor like the rutherford engine, could it be doable to position the primary valve upstream on the pump? How would a gas-light style metropolis https://petskyonline-onlinestrore.blogspot.com/2025/07/top-10-aquarium-essentials-for-new-fish.html