So how many stars are there in the Universe? It is easy to ask this question, but difficult for scientists to give a fair answer! Stars are not scattered randomly through space, they are gathered together into vast groups known as galaxies. The Sun belongs to a galaxy called the Milky Way.
Reverse osmosis. Reverse osmosis (RO) is a water purification technology that uses a semipermeable membrane to remove ions, molecules, and larger particles from drinking water.
Reverse Osmosis Membrane Cleaner. Accepta 2066 is a high performance, general-purpose reverse osmosis (RO) membrane cleaner, scientifically formulated to support the cleaning of acid insoluble sulphates of calcium, barium and strontium, as well as calcium fluoride from reverse osmosis membranes.