RO系统去除了给水中大百分比的总溶解固体，还有细菌和内毒素。
Ro systems remove a large percentage of the total dissolved solids, as well as bacteria and endotoxin, from the feed water.
结果表明，污泥混合液悬浮固体形成阻力占膜总阻力的70%，胶体物质形成阻力占22%，溶解性物质形成阻力占8%。
The resistance caused by suspended solids of the mixed liquor occupied 70% of total membrane resistance, that by colloidal substance occupied 22% and that by soluble substance occupied fraction 8%.
而且饮用水的硬度和总溶解性固体（ TDS）和当地居民心脏病的死亡率有确定的正相关性。
It has been found from some investigations that TDS and hardness of drinking water correlate with the lethal rate of heart disease of the local population.
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