subtraction of vectors

acid chrome blue K Ayano-Mayskiy Rayon Bayou d'Arbonne Lake capunda cavilongo consistent interpretation dipeptide dynamic interfacial tension evasive glano hoovestol lap dissolve shutter lock valve palaeontography pallial complex radices senegae ruthenium(iv) hydroxychloride short wave diathermy stersund trichocidin two stage turbo-charger