在球面的数控车削加工过程中，刀具长度补偿和刀尖半径补偿的正确与否对于保证球面的轮廓精度极为重要。
In the spherical surface NC turning, the correct tool length compensation and tool nose radius compensation are significant to guarantee the precision of spherical surface.
最后在实验的基础上对湍流廓线计算球面波斜程大气相干长度作了讨论。
At last, some problems of getting atmospheric coherent length from the integral of turbulence profile were discussed.
镜头长度较短，采用非球面塑料透镜，生产成本较低，成像性能良好，满足使用要求。
With aspherical plastic lens and short length, the production cost can be decreased. The lens has good performance and meets practical requirements.
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