engelska-portugisiska översättning av envelope

envelopeO terceiro ponto diz respeito ao sistema dos national envelopes . The third point is related to the system of national envelopes. Por que razão é que uma folha A4 cabe num envelope? Why does a sheet of A4 fit into an envelope? Volto então aos meus envelopes. This brings me back to my envelopes.
invólucro

A paper or cardboard wrapper used to enclose small, flat items, especially letters, for mailing
Something that envelops; a wrapping
A mathematical curve, surface, or higher-dimensional object that is the tangent to a given family of lines, curves, surfaces, or higher-dimensional objects
The shape of a sound, which may be controlled by a synthesizer or sampler
An enclosing structure or cover, such as a membrane; a space between two membranes
The nebulous covering of the head or nucleus of a comet; a coma

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