沙尘期间，气溶胶光学厚度显著升高，而尺度上升，粗粒子浓度显著增加，大气气溶胶表现出中性或异常消光特征。
Rapid increase of aerosol optical depth and coarse particle concentration, as well as aerosol neutral or anomalous extinction was observed during dusty periods.
而力量组变化较小，表现为左室壁厚度的明显增加和左室重量的轻度增大。
Between them, Endurance Group changed more:not only left ventricle cavity shin enlarged, but also the wall of left heart thickened slightly, the weight of left cardiac muscle increased apparently.
中国地区气溶胶光学厚度呈现逐年增加的趋势，但1985年后增加趋势减缓，这种变化在大城市区域表现得更为明显。
It is found that the aerosol optical depth over China showed an increasing trend but a slow upward trend after 1985, especially in the megacity regions.
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