backwash efficiency 中文意思是什麼
backwash efficiency
解釋
反洗效率- backwash : 回浪；逆流；反動；反響；餘波。
- efficiency : n. 1. 功效。2. 效率；效能；實力，能力。3. 【物理學】性能。
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The results showed : fiber ball has the highest efficiency among the three, its water - consumption is small in backwash and it is more wear - resisting ; the comprehensive property of quartz grain filter material is poorer ; manganese grain has an effective removal of fe ( superscript 2 + ) and mn ( superscript 2 + ) but water - consnmption is big
結果表明纖維球濾料除鐵濾速高，反沖洗耗水量小且耐磨損；石英砂濾料綜合性能次之；錳砂雖然除鐵效果較好，但反沖洗耗水量大。
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