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带电粒子在重力场和匀强电场组成的复合场中的运动规律是由其受力决定的,分析受力、把握各种运动的特点和规律是正确解题的关键。
The motion law of the charged particles in the composite field consisting of the gravitational field and the uniform electric field is determined by its force. Analyzing the stress and grasping the characteristics and laws of various movements are the key to solving problems correctly.