| 摘要 |
A baffle for a tubular structure of at least two pairs of spaced tubes comprises a first baffle sheet having two portions curved in accommodation of spaced tubes in one of the pairs, and a second baffle sheet having another two portions curved in accommodation of spaced tubes in the other of the pairs when said baffle is inserted in between these two pairs of spaced tubes. These first and second baffle sheets are structurally interconnected and biased away from each other for self-clamping retention between the two pairs of spaced tubes. The first and second baffle sheets preferably are spaced from each other for their clearing corresponding spaced tubes when they are moved toward each other against the above menbtioned bias for an insertion in between the pairs of spaced tubes.
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