1. Supply or return duct section. Single - or double-lineducts can be specified.
送风或回风管道部分。可以指定单线管道或双线管道。
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2. Additional supply duct section. Supply or return duct can be specified. Single - or double-lineducts can be specified.
附加送风管道部分。可指定送风管道或回风管道。可以指定单线管道或双线管道。
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3. Duct extension. Supply or return duct can be specified. Single - or double-lineducts can be specified.
管道延伸。可指定送风管道或回风管道。可以指定单线管道或双线管道。
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4. In addition, a trim air line from the left mix chamber adds hot air to the flight compartment duct.
另外,从左混合舱出来的配平空气管道增加热空气给驾驶舱管道。
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5. Return air duct section. Single - or double-lineducts can be specified.
回风管道部分。可以指定单线管道或双线管道。
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6. If the cross section area of the two branching ducts are different, the Included angle on the smaller branch duct against the extended center line is usually bigger.
若分枝管的截面积大小不同,则细支管与母管中心延长线间的夹角较大;
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7. The line clamp designed in the article can take the place of the explosive pressing duct to take on the tensile force of line in working order.
8. The line clamp designed in the article can take the place of the explosive pressing duct to take on the tensile force of line in working order. The line and the duct can be protected in this way.
9. Four propagation models of diffraction, line-of-sight, scatting and duct are analyzed. The basic transmission loss for each of the models is calculated according to the ITU-R model and GZB model.