每隔3年时间，就要把阳极棒从热水器内胆上拆卸下来进行检查。
The anode rod should be removed from the water heater tank every 3 years for inspection.
其整体性能的核心是件与件间螺纹连接的不可拆卸性，目前普遍应用硬钎焊技术。
The property of the integrity depends on the un-dismantlement of the brackets from the bracket threaded and coupled. At present, brazing technology are widely adopted at home and abroad.
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