Advancing surface definitions

Advancing surface

• The first of two or more surfaces arranged in tandem; -- contr. with following surface, which is the rear surface.
Found on http://thinkexist.com/dictionary/meaning/advancing_surface/

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Advancing surface

Ad·van'cing sur'face (Aëronautics) The first of two or more surfaces arranged in tandem; -- contr. with following surface , which is the rear surface.
Found on http://www.encyclo.co.uk/webster/A/34

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