“quadrantal angle”的概念、定义、翻译、参考文献-科学参考

单词	quadrantal angle
释义	quadrantal angle [kwä¦drant·ǝl `aŋ·gǝl] ^MATHEMATICS An angle equal to 90° or π/2 radians multiplied by a positive or negative integer or zero.
随便看	clasp nut class class A amplifier class AB amplifier class A modulator class A push-pull sound track class B amplifier class B auxiliary power class B modulator class B push-pull sound track class C amplifier class C auxiliary power class Cn class D amplifier class D auxiliary power class E amplifier class F amplifier class formula class frequency classical approximation classical canonical matrix classical conductivity theory classical electron radius classical field theory classical mechanics

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