超光谱成像系统的标定是确定其输出准确数值的过程。
The calibration of hyperspectral imager is a process that corrects itself's output.
准确数值模拟机翼动态失速时非定常流场主要有湍流模型和数值算法两方面的难点。
The numerical simulation of the unsteady flow field around an oscillating airfoil is difficult because of the complexity of turbulence models and numerical methods.
那个数值与今天雷达测定的149,597,870公里相当接近,就当时来说准确度很合理,雷达在精度上已经取代了凌日和其他所有方法。
Reasonably accurate for the time, that is quite close to today's value of 149,597,870 km, determined by radar, which has now superseded transits and all other methods in accuracy.
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