contour feathers
plural of contour feather
(formal) suddenly
A type of thermal oxidizer for treating air pollutants of all types, especially VOCs and odours, by burning the gases in an oven at about 800ºC for about 1 second, while recuperating part of the he...
Of or relating to a macrotheory.
その鳥は飛び立つ前に輪郭羽を羽づくろいして整え、各羽枝を滑らかにして空力効率を高めた。
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DiQt
Free
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