| 摘要 |
A filter ( 2 ) comprising a body ( 4 ), an inlet ( 6 ) for a liquid passing into the body ( 4 ), an outlet ( 8 ) for the liquid passing out of the body ( 4 ), and a foam material ( 10 ) in the body ( 4 ) for filtering the liquid as the liquid passes through the body ( 4 ) and also for absorbing water in the liquid.
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