ＲＯ膜あーるおーまくMeanings1nounreverse osmosis membrane; RO membranebiologyTechnical term in biology and water treatment; synonymous with 逆浸透膜.See also: 逆浸透膜この浄じょう水すい器きにはＲＯ膜あーるおーまくが使つかわれている。This water purifier uses an RO membrane.
