“commutator”的概念、定义、翻译、参考文献-科学参考

单词	commutator
释义	commutator [`käm·yǝ´tād·ǝr] ^{ELECTROMAGNETISM} That part of a direct-current motor or generator which serves the dual function, in combination with brushes, of providing an electrical connection between the rotating armature winding and the stationary terminals, and of permitting reversal of the current in the armature windings. ^MATHEMATICS The commutator of a and b is the element c of a group such that bac = ab. ^{QUANTUM MECHANICS} The commutator of a and b is [a,b] = ab - ba.
随便看	equivalent conductance equivalent continued fractions equivalent diameter equivalent electrons equivalent elements equivalent equations equivalent evaporation equivalent focal length equivalent footcandle equivalent four-wire system equivalent head wind equivalent height equivalent magnetic length equivalent map projection equivalent nitrogen pressure equivalent noise conductance equivalent noise pressure equivalent noise resistance equivalent noise temperature equivalent nuclei equivalent orifice equivalent periodic line equivalent potential temperature equivalent resistance equivalent round

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