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effect of refraction
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  折射影响
     We also analyze the effect of refraction in underwater application of vision measurement system, and show the modified expressions. Analyze how to calibrate an underwater camera in the air.
     文中还分析了视觉测量系统在水下应用时的光线折射影响问题,并给出了修正公式。
短句来源
     Test section was made of quartz glass tube with a refractive index of 1.458,meanwhile,a mixture of 54% benzyl alcohol and 46% ethyl alcohol with the same refractive index as that of quartz glass was chosen as working fluid,so that the effect of refraction on the tube wall was successfully eliminated.
     采用石英玻璃制作实验段 ,苯甲醇和乙醇的混合溶液作为流动工质 ,适当调配两种溶液的混合比例 ,使液体工质和固体壁面具有相同的折射率 ,均为 1 4 5 8,消除了壁面对测量光线的折射影响 ,拓宽了激光多普勒测速仪的应用范围 ,提高了测量精度 .
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  “effect of refraction”译为未确定词的双语例句
     The Effect of Refraction and Dispersion on Bragg Equation
     折射和色散对布喇格方程的影响
短句来源
     Effect of Refraction Index on Reflection Performance of Return Reflecting Fabric
     折射率对回归反光织物反光效果的影响
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     The Effect of Refraction of Coupling Agent Radicals to the Refractive Index of Unsaturated Polyester Resins
     交联剂基团折射度对不饱和聚酯树脂浇铸体折射率影响的理论计算方法
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     On the Effect of Refraction on Collimation Line Observation for Marine Dam
     海堤视准线观测的折光影响初析
短句来源
     In this paper the effect of refraction index from 1. 90 to 2. 00 on reflection of return reflecting fabric is studied from two aspects of the direction and the intensity of return reflected light.
     本文以回归反光织物表面的透明微珠为研究对象,就微珠的折射率在1.9以上变化时对回归反射光方向和强度的影响进行了较为详细的分析。
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  effect of refraction
The effect of refraction on the oblique angles was studied.
      
Effect of refraction on propagation of a wave beam in a turbulent medium (atmosphere)
      
Effect of refraction on power deposition profiles during electron cyclotron wave injection in a toroidal fusion plasma
      
The effect of refraction in this system is not considered.
      


For four years(1951—54)time determination data,after allowed for personal equation and referred to the mean observatory which is formed by the International Time Office(B.I.H.),seasonal fluctuation with amp- litude equals to 25 ms is found.That is,the clock corrections observed at Zi-Ka-Wei Observatory seem larger in May while smaller in February and July as compered with their annual mean. The Δ(α_α) type error of the fundamental catalogue(FK_3)contributes to the seasonal fluctuation with an amount of 6ms only....

For four years(1951—54)time determination data,after allowed for personal equation and referred to the mean observatory which is formed by the International Time Office(B.I.H.),seasonal fluctuation with amp- litude equals to 25 ms is found.That is,the clock corrections observed at Zi-Ka-Wei Observatory seem larger in May while smaller in February and July as compered with their annual mean. The Δ(α_α) type error of the fundamental catalogue(FK_3)contributes to the seasonal fluctuation with an amount of 6ms only. Inclination of atmospheric equi-density surface in pre-earth layer which is calculated with air pressure and temperature data taken from Shanghai and Lig-Yang(180km west of Shanghai)shows annual variation of 2′.5, thus the effect of refraction anomaly corresponding to the inclination calcu- lated is practically null. Besides,room refraction is also harmful.By the air temperature data taken from the east and west wall inside the observing room,the effect of room refraction thus estimated may become 8 ms in summer and turn to zero in winter. However,after draw out the influence of Δ(α_α) type error and room re- fraction,the seasonal fluctuation still appear.It is thought that thermal deformation of the transit instrument may be account for,as the diurnal change of air temperature and the temperature drop at night both signi- ficantly correlate to the seasonal fluctuation of time observation.

中星仪测时的组内符合程度比组外符合程度约高一倍,这已是人所共知的事实.一般认为引起组外符合程度较差的因素是仪器情况的变更和反常折射的存在.本文根据1951—1954年间徐台的天文测时结果求出它的季节性变化,并考虑星表误差、反常折射以及其他气象因素在测时结果所引起的影响.在上述期间,徐台天文测时所用的是一具口径80mm 焦距86cm 的帕兰(Prin)中星仪,附有马达带动人手操纵的接触测微器,仪器的水平轴是用水银盘控制的.主要的观测者为龚惠人(K),沈祖耀(S),罗定江(L)三人.

The paper first analyzes the effect of refraction on triangle closure in extensive tri angulation chain. Then in considering the effects of random error, refraction and error of centring correction, the formula for estimating the correlation coefficient ρ_ between two adjacent triangle closures is derived, and the relation between the ratio K_f of the random m.s. e.to m_f, which is the angle m. s. e. given by Ferrero criterion, and the estimation of σ_, and the formula to estimate the m.s.e....

The paper first analyzes the effect of refraction on triangle closure in extensive tri angulation chain. Then in considering the effects of random error, refraction and error of centring correction, the formula for estimating the correlation coefficient ρ_ between two adjacent triangle closures is derived, and the relation between the ratio K_f of the random m.s. e.to m_f, which is the angle m. s. e. given by Ferrero criterion, and the estimation of σ_, and the formula to estimate the m.s.e. of observation of any certain angle in a chain are further deduced. The latter two formulas are and the approximate formula for estimating the variance of any given angle α where m_ is the random m.s.e of the observed angle awithout refraction effects,and s_0, D_s the mean value taken over all sides in the chain and the variance to the mean. Applying the above formulas to the Chinese first order triangulation chain,the result is that K_f~2≈0.61=0.61, i. e., the effect of random errors is 61% in m_f~2, and that of nonuniform refraction fields is about 39% in the chain. In addition, it may be considered that σ_△=-0.13 and the tendency for large angles to be less accurate in the chain both are caused by the effect of non-uniform refraction fields.

文章首先分析了折光误差对大规模三角锁中三角形闭合差的影响。然后在考虑观测的偶然误差、折光误差和归心误差的情况下,导出计算相邻三角形闭合差相关系数ρ_△的公式,并进而求得测角中误差比值K_f与ρ_△估值的关系和估计锁中任意角度测角中误差的公式。最后将这些公式用于分析我国的一等锁。

In this paper the effect of refraction index from 1. 90 to 2. 00 on reflection of return reflecting fabric is studied from two aspects of the direction and the intensity of return reflected light.

本文以回归反光织物表面的透明微珠为研究对象,就微珠的折射率在1.9以上变化时对回归反射光方向和强度的影响进行了较为详细的分析。

 
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