There is significant different for exercise frequency, time and intensity at different stage.
不同锻炼阶段参加闲暇体育锻炼的频度、时间和强度差别具有显著性；
Different magnetic field intensity provided similar quality.
不同场强组，所成图像质量基本相同。
The effect of different activity intensity...
运动强度对降脂效果无明显影响。
The effect of different activity intensity...
运动强度对降脂效果无明显影响。
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