O Arjuna, but now hear from Me, the three kinds of happiness by the cultivation of which one enjoys and one attains the cessation of all distress.
阿诸那啊，现在听“我”说说三种幸福快乐。通过修行，人可以享受愉悦而终止所有的痛苦。
This lidar system allows three-dimensional measurements by using a steering unit, and can measure four kinds of pollutants in atmosphereaerosol, SO 2, NO 2, and O 3.
该雷达系统能监测四种大气污染物，即大气气溶胶、二氧化硫、二氧化氮和臭氧。
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