英文: By a quarter of wave length commutator principle, combining with electromagnetic wave absorb of filling material.

中文: 利用四分之一波长转换器原理，结合填充材制成电磁波吸收体。       更详细...

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英文: In this paper, we have discussed the relation of commutator and operator of related on orthomodular lattices.

中文: 摘要文章讨论了正交模格上的换位子及关联算子之间的联系。       更详细...

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英文: It is very necessary to make sure that the carbon brushes stay in good contact with the commutator .

中文: 确定一下碳刷与换向器是否保持良好的接触，是非常必要的。       更详细...

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