The propagation of sound in wet close granular media can excite two expand waves and a rotation wave.

声波在其中传播时将出现两个膨胀波和一个旋转波。

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One part is not effected by Faraday rotation, because of cancellation of rotating angels for two oppositing polarized waves, so it is called as ordinary wave.

波场仍分为两部分，一部分，因法拉第旋转角相互抵消，而不受影响，即寻常波。

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The basic methods for SM fiber-optic polarizer are polarization controller method and wave plate rotation method.

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 ；

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Based on the Phoenix lander, the craft is tasked with giving us a peek beneath the planet's surface, armed with tools that include a geodetic instrument from the Jet Propulsion Laboratory, which will be used to calculate Mars' rotation axis, a seismic wave sensor and a subsurface heat probe, to measure the planet's internal temperature.

ENGADGET: NASA InSight tapped for Mars drilling mission in 2016