宝塔式的知识结构更有利于他们的进步和成长。

The tower - bridge formation of knowledge structure is more helpful to the development and progress of college sports faculty.

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建议：宝塔式水管接头，可根据水族箱（池）的水容积及水泵最高流量，结合管径大小加以切除配套。

Suggestion : according to the water cubage of aquarium ( pool ) and max. flux if pump , and the size of tube diameter, cut the pagoda type hose joint to match if.

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