声波在其中传播时将出现两个膨胀波和一个旋转波。
The propagation of sound in wet close granular media can excite two expand waves and a rotation wave.
不作旋转波近似， 破缺可积性的因素，主要来自虚光场项。
In NRWA, the main factor which will deslroy the non classical effects is the virtual photon term.
单模光纤偏振器的基本测试方法有偏振控制器法和旋转波片法 ；
The basic methods for SM fiber-optic polarizer are polarization controller method and wave plate rotation method.
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