The apparatus of claim 5, wherein the first cross beam further comprises a four-bar-linkage.

该仪器索赔5，其中第一次横梁还包括一个四杆联系。

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We named it Stokes method which use four parameters to describe the polarization of light beam. The four parameter use the same physics dimension.

描述光束偏振态的最普遍的方法，是用一组物理量纲完全相同的参量——斯托克斯参量来描述。

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A four-beam acoustic doppler current profiler (ADCP) is often used at an Angle.

实际使用中，声学多普勒流速剖面仪(ADCP)常常处于倾斜状态。

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Having been pipped to the all-around title (which takes into account performances on all four pieces of apparatus) by team-mate Nastia Liukin, Johnson exacted revenge on the balance beam, the final women's gymnastics event of the Beijing Games.

BBC: US gymnast Shawn Johnson seeks focus to succeed in 2012