| 1. | The filter is now ready for operation .
这种滤器目前即将投入运转。 |
| 2. | The first dubious snow had filtered down .
头一场雪仿佛三心二意似地飘落。 |
| 3. | The particles can be collected on the filter paper .
颗粒可捕集在滤纸上。 |
| 4. | A filter traps dust from the air .
过滤网可存住空气中的尘埃。 |
| 5. | Shafts of sunlight filtered through the curtains .
一道道阳光透过窗帘照进来。 |
| 6. | They filtered the water through the sand .
他们用沙子滤水。 |
| 7. | The solid particles were filtered from the solution .
固体颗粒从溶液中过滤出来。 |
| 8. | The filters would have to absorb nearly all the energy .
滤光片几乎要吸收全部能量。 |
| 9. | Humic substances are known to coat membrane filters .
腐殖质是已知能够覆盖滤膜的物质。 |
