不稳定组分;非稳定环节
It is proved that, during thermal adaptation the baroclinic component of potential vorticity along the boundary of the heating region becomes negative and larger than the barotropic component, where the atmosphere becomes symmetrically unstable.
证明在热力适应过程中,沿着加热区的侧边界斜压位涡为负,且大于正压位涡,那里的大气出现对称不稳定。
Because of the problem in calibration experiments, the original algorithm has been improved. It calibrates the translation component tz, which eliminates the unstable effect for the result and makes the good convergence of the focal length.
实验中针对标定遇到的问题,改进了原有算法,采用单独标定平移分量tz,消除了tz对标定结果造成的不稳定影响,得到了收敛性较好的焦距值。
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