通常，在首次建槽加料时对此板进行调整。
Adjustment of the plate is usually made only when the tank is first filled.
两块板端应该搭接，搭接长度大约为工厂预制槽的一半(搭接时注意当地的常年风向)。
Two boards should end lap, lap length about half the prefabricated groove for the factory.
大房间的天花板高18英尺（约合5.5米），采用榫槽镶板。
The ceiling in the great room is 18 feet, with tongue-and-groove paneling.
PVC天花板类型：有单位或与中间槽。
PVC天花板类型：有单位或与中间槽。
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