交换: exchange; swap; interchange; ...环: ring; hoop上: upper; up; upward的: 4次方是 The fourth power of 2 i ...代数: K理论 algebraic K-theory交换环: change ring; commutative ring; ring代数的代数: algebraic algebra包交换环境: packet switching environment非交换环: noncommutative ring交换环谱: spectrum of a ring通道交换环: psr path switched ring一般交换环: general commutative ring环上的碘: iodine in ring环上的卤: halogen in ring环上的氯: chlorine in ring环上的氢: ring hydrogen交换环的范畴: category of commutative rings一般交换环论: theory of general commutative rings域的代数闭包: algebraic closure of a field域的代数扩张: algebraic extension of a field正规的代数簇: normal algebraic variety单向通道交换环: upsr unidirectional path switching ring债务交换环境保护: debt for environmental protection swap换环: ring replacement正规表示的代数: algebra of regular represent
