反射率

Above-water remote sensing reflectance and scattering extinction coefficients of water were derived by modeling radiative transfer across the water-air interface with in situ measured water quality data and beneath water spectral reflectance measurements in Lake Tai.

利用太湖水质参数数据、水面以下实测光谱数据以及水-气界面辐射传输模型，计算得到了水体漫射衰减系数和水面以上遥感反射比，探讨了悬浮物对水体中营养盐以及水下光照等水体环境因子的影响，在此基础上，利用水面以上遥感反射率建立了悬浮物浓度的定量反演模型。

The study indicates that the center wavelength of FBG's reflected spectrum on the two polarization directions shift, and the reflectivity decreased with the increase of the twist angle. The longer wavelength produces"red shift". The shorter wavelength produces"blue shift". And the wavelength shift is basically same.

研究表明，随着扭转角度的增加，两个偏振方向的光栅反射谱中心波长发生移动且反射率降低，长波长的产生"红移"，短波长的产生"蓝移"，移动的波长量基本相同。

The reflectivity of the multilayer is measured at Bessy Ⅱ synchrotron radiation, and the peak reflectivity is measured to be 7.5%.

对衍射仪测量的掠入射反射曲线和同步辐射测量的反射率曲线分别进行拟合，得到的粗糙度和厚度比的结果相近。

The crystal structure of cristobalite is helpful to optical reflection, and the cristobalite can institute the tiny glass ball to be used as the filler of the reflective paint to reinforce the non-skid property and improve the reflection of paint.

高反射率。方石英的晶体结构有助于光反射，可取代玻璃微珠作反光油漆的填料，既可增强防滑性，又可提高油漆的反光性。

The accumulation of snow and ice during a glacial period increases the surface albedo, reflecting more of the Sun's energy into space and maintaining a lower atmospheric temperature.

冰河时期冰雪的堆积增强了地表反射率，将更多的太阳能量反射到太空中，使大气温度维持在较低水平。

The relationship between the reflectivity and the position of stress is hyperbolic tangent. Moreover, the phase had certain relations. Based on this, the characteristic of FBG under inhomogeneous transverse force were studied.

同时，应用传输矩阵的方法对光纤光栅横向局部受力特性进行了研究，研究发现当光栅局部受力时，反射谱产生分裂，分裂点波长移动与受力大小成线性周期变化，分裂点的反射率与光栅局部受力位置为双曲正切关系，而且相位也存在一定的关系。

The reflectivity of ligneous material's surface to CO2 laser is substantiated by experiment, then the mathematics model of the reflectivity is set up according to the basic principle of optics.

通过试验证实了木质材料表面对CO2激光反射的存在，根据基本光学理论建立木质材料表面对CO2激光的反射率数学模型。

Markov chain of stochastic process theory was introduced into the reflection mathematic model by considering the fact of total reflectance when light propagate to optically thinner medium from denser medium. The reflectance mathematic model of halftone image coated with different reflectance ink layer was established and discussed.

将随机过程论中的马尔可夫链理论引入到印刷品的反射－透射数学模型中，考虑到光在由光密介质进入光疏介质中传播时会发生全反射现象的事实，讨论并建立了不同折射率油膜层叠加的半色调图像光谱反射率数学模型。

The formula for reflectance and displacement on free surface were obtained, based on the reflectivity theory.

在对反射率法系统介绍的基础上，推导了反射系数和自由表面上的位移的表达式。

Ku prattled away, even dragging in the bed plank incident

反射波振幅与入射波振幅的比率称作反射率或反射系数。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。