Of all the factors influencing sonic booms, increasing altitude is the most effective method of reducing sonic boom intensity.
在所有影响音爆的因素中，提高飞行高度是减弱音爆的最有效措施。
2
The decline in the intensity of light can lead to Seasonal Affective Disorder (SAD) and blue/green and full-spectrum light are used in phototherapy, an effective cure for winter depression.
Accident tree analysis is applied to risk analysis and a mathematical model is established, including fire model, effective release rate model, heat intensity threshold and hazard area equation.