【机】 boundery film
margin; bounds; ambit; circumscription; dividing line; limits
【化】 limit; limit(ing) point; margin
【医】 schwelle; threshold
film; membrane; theca; velamen; velum
【化】 membrane
【医】 coat; envelope; film; lemma; membranae membranae; membranae membrane
panniculus; theca; thecae; tunic; tunica; velamen; velamenta
velamentum