将滤波器的采样时间与剪切误差之间的关系模糊化。
The relation between the filter sampling time and cutting error is fuzzed.
文中还对楔板引入的横向剪切误差和相移误差进行了分析，最后给出了实验所得的一组相移干涉图。
The lateral shear errors and phase shift errors induced by wedge plates are also discussed, and the experimental results of phase-shifting vectorial-shearing interference fringes are given.
虽然偏离值可能不大，但利用对数剖面去计算河底粗糙长度和剪切应力时会引起较大的误差。
The amount of the departure may not necessarily be large, but it results in the larger errors when the profiles are used to calculate the bed roughness length and shear stress.
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