求翻译：30mm的扁管，铺设在地板龙骨的空间内，不占用层高净空间，对层高没有影响，同时，地板铺设后，即完成了风管的覆盖，节省了大量装饰风管的材料，此部件为整个系统的管道与管道之间的连接件是什么意思？

30mm of flat tubes, the laying of the keel of the floor space, do not take up the the storey net space, no effect on the storey flooring, complete coverage of the duct to save a large number of decorative duct materials, this components for the entire system of pipelines and pipeline connection betw

The 30 mm tube, Chen Shui-bian Keel laying on the floor in the space, do not take up floor space, the net is not affected, as well as ceilings and the floors are covered with is complete once the air tube cover, saving a lot of the material furnished air tube, this part of the whole system of pipes

30mm的扁管，铺设在地板龙骨的空间内，不占用层高净空间，对层高没有影响，同时，地板铺设后，即完成了风管的覆盖，节省了大量装饰风管的材料，此部件为整个系统的管道与管道之间的连接件

30mm flat tube, laying on the floor joist spaces, does not take the higher net space, has no effect on storey, while the floor after installation to complete air duct cover, saving a lot of decorative duct material, this part of the system as a whole between pipe and pipe connectors

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