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12:28 Aug 21, 2000
English to French translations [Non-PRO]
English term or phrase:closed--hence
The Möbius Band is the building block for non-orientable surfaces. It is formed by joining the ends of a rectangle with a twist (180 degrees). Any non-orientable surface contains a Möbius Band, and any surface that contains a Möbius Band is necessarily non-orientable. It is not closed--hence it is not a surface, and it contains one boundary curve.
Explanation: Le tiret entre closed et hence, en fait devrait être un tiret long et non pas un trait d'union.
Les 2 termes ne sont liés que par une relation consécutive.
Ce n'est pas fermé, donc ce n'est pas une surface ...