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| 1 | filter bed | 濾床 | |||
| 2 | filter bed agitator | 濾床攪拌機 | |||
| 3 | granular bed filter | 深層濾過 | |||
| 4 | granular bed filter | 粒状層濾過 | |||
| 5 | slow filter bed | 低速濾過床 | |||
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|---|---|---|---|---|---|
| 1 | filter bed | 濾床 | |||
| 2 | filter bed agitator | 濾床攪拌機 | |||
| 3 | granular bed filter | 深層濾過 | |||
| 4 | granular bed filter | 粒状層濾過 | |||
| 5 | slow filter bed | 低速濾過床 | |||
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