利用菲涅尔公式讨论了几种不同界面上线偏振光反射时的偏振态，分析了振动方位角的变化情况。
This paper analyzes the polarization of reflected light by Fresnel formula when linearly polarized light is incident on different interfaces, and discusses the change of vibration azimuth angle.
先进的近钻头传感器可实时测量地层早期参数和井眼动态变化系列参数，比如倾斜度、伽马射线方位角、转角度、粘滑、振动及其他钻井参数。
Advanced sensors measure inclination, azimuthal gamma ray, whirl, stick-slip, vibration, and other drilling parameters for early detection of formation and borehole dynamic changes.
先进的近钻头传感器可实时测量地层早期参数和井眼动态变化系列参数，比如倾斜度、伽马射线方位角、转角度、粘滑、振动及其他钻井参数。
Advanced sensors measure inclination, azimuthal gamma ray, whirl, stick-slip, vibration, and other drilling parameters for early detection of formation and borehole dynamic changes.
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