So the next thing we had to figure out was how we could remove the oxygen, which we did by building this column which circulated some of the water, and put back CO2, which we did by bubbling the system before we recirculated the water.
なので次の問題は酸素を取り除くことで それをこのコラムを立てて行いました コラムは一部の水を循環させ 水が戻る前に炭酸ガスの 気泡を含ませ 二酸化炭素を戻します