The focal shift analytic expression is derived.
经推导得出焦移解析表达式。
The research result shows that with the designed pupil filter the axial focal shift can be controlled by rotating the half-wave plate.
研究结果表明，通过旋转半波片的角度可以实现焦移量的实时控制。
Through theoretic analysis and numerical simulation, the focal shift of a focused flat beam propagating in turbulent atmosphere is studied.
通过理论分析和数值模拟，对聚焦平台光束大气传输的焦移问题进行了研究。
The influences of the optical system focal shift and the detection laser beam parameters on the echo of cat-eye optical system are studied.
研究光学系统离焦量和探测激光束参数对猫眼光学系统回波强度的影响。
The axial intensity distribution and focal shift of H-G beams with even mode Numbers are analyzed and illustrated with detailed numerical examples.
利用数值计算详细分析和说明了偶数模厄米高斯光束的轴上光强分布和焦移。
The analysis that the size of the focal shift is related to the factors such as Fresnel number, separating degree of lens-diaphragm and curvature radius of incident wave wavefront, etc.
分析表明，焦移的大小与菲涅尔数、透镜-光阑的分离程度以及入射波波面曲率半径等因素有关，并得出了消除焦移的条件。
Numerical calculations are performed and show that the focal shift in focused sinhGaussian beams depends on the Fresnel number and decentered parameter, and increases with decreasing them.
数值计算表明，聚焦双曲正弦高斯光束的焦移与偏心参数和菲涅耳数有关，焦移随偏心参数和菲涅耳数的减小而增大。
But once workers achieve a sufficient level of pay, they shift their focus from what their pay allows them to do to other focal points - such as how much their colleagues earn.
一旦员工的薪酬足够多，他们就开始把关注点从薪酬能让他们做些什么转移到其他方面了，比如其他同事赚多少钱。
CONCLUSION it is effective to completely shift the function of cerebral focal related structure in patient with aphasia in moving their potential of rehabilitation and enhancing the training effect.
结论：充分调动失语患者脑部病灶相关结构的功能可以有效调动患者的康复潜力，增强训练效果。
CONCLUSION it is effective to completely shift the function of cerebral focal related structure in patient with aphasia in moving their potential of rehabilitation and enhancing the training effect.
结论：充分调动失语患者脑部病灶相关结构的功能可以有效调动患者的康复潜力，增强训练效果。
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