(pi -da) ilova, qo' shim cha (kitob, shartnoma va b. ga); ilova qilish, to'ldirish; an~circle tishlar uchining aylanasi (tishli g 41- dirakdd); an - cone tishlar uchining konusi (konus shaklidagi tishli g 41- dirakda); an - cut tish (dandana)lar uchini kesish (qirqish); - factor tish (dandana) tepa qismining balandlik koeffitsiyenti; an - line tashqi (sirtqi) tomonidagi aylana; - modification coefficient tish (dandana) tepa qismining koeffitsiyenti; an - to a contract shartnomaga qo' shim cha