Seeing conditions (or air turbulence) is the single most important factor that degrades image contrast and planetary detail.
观察的条件(大气扰动)是影响对比度和行星细节的最重要的因素。
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The condensation leads the average turbulence to be increased by 12-25% and the steady-state distortion factor, DC60, to be changed obviously in the experimental range.
Atmosphere turbulence is the major factor that affects the accuracy of the propagating direction of a laser beam, and causes serious errors in laser straightness measurement at long distance.