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| 1 | rapid filtration | 急速砂濾過法 | |||
| 2 | rapid filtration | 急速濾過 | |||
| 3 | gravity rapid filtration | 重力式急速濾過法 | |||
| 4 | rapid sand filtration | 急速砂濾過 | |||
| 5 | rapid sand filtration | 急速濾過 | |||
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|---|---|---|---|---|---|
| 1 | rapid filtration | 急速砂濾過法 | |||
| 2 | rapid filtration | 急速濾過 | |||
| 3 | gravity rapid filtration | 重力式急速濾過法 | |||
| 4 | rapid sand filtration | 急速砂濾過 | |||
| 5 | rapid sand filtration | 急速濾過 | |||