| 摘要 |
A liquid heating system may comprise a metallic container and a refillable non-corrosive hollow porous tube, which may be coupled to the metallic container. The refillable non-corrosive hollow porous tube may include at least one open end and anodic material may be filled or refilled into the refillable non-corrosive hollow porous tube through the at least one open end. The anodic material is corroded by the oxidation process at a substantially faster rate compared to the metallic container. The anodic material is refilled into the refillable non-corrosive hollow porous tube through the at least one open end without removing the refillable non-corrosive hollow porous tube from the metallic container or disturbing the position of the refillable non-corrosive hollow porous tube.
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