| 1. | The biggest difference between the slow and rapid filtration methods was in their speed
快滤法与慢滤法最主要的差别在于过滤的速率。 |
| 2. | At that time the water companies of many developed countries also began building rapid filtration plants
当时各先进国家的自来水事业，也纷纷兴建快滤场。 |
| 3. | The rapid filtration plant had a filtration speed of over 100 meters per day , taking only 2 hours to turn raw water into clean water
快滤场每日滤速在100公尺以上，原水变成清水约需2 - 4小时。 |
| 4. | Since then all of our departments new water purification facilities have used rapid filtration technology , providing the water supplies of our precincts with dependable sources of clean water
尔后本处新增之净水场悉数采用快滤技术，为辖区供水提供坚实可靠的基础。 |
| 5. | Advanced water purification uses ozone treatment and bio - activated carbon treatment during the conventional sedimentation and rapid filtration processes . this treatment breaks down trihalomethane , and substances causing a moldy odor
先进的水净化设备在传统沉淀和快速的过滤过程中，使用氧气处理和活性炭处理，这一处理除去了三卤甲烷等引起发霉味道的物质。 |
| 6. | Through sedimentation , filtration and disinfection , the process of turning raw water into clean water required around 48 hours . though the filtration speed was slow , it provided a stable quality of water until its later replacement by faster working rapid filtration plants
原水经沉淀过滤消毒，最后变成清水，约需48小时，费时虽长，却能供应水质稳定的自来水，日后已被滤速更快的快滤场取代。 |
