The scattered particles are fanning out from the target. 散射粒子從靶處作扇形散開。
Mosquito-repellent incense smoke is selected as scattering particles in the measurement by means of theoretic analysis and making contrast experiments. 在測量中，經過理論分析與對比試驗，選擇了蚊香煙霧作為散射粒子。
滬公網安備 31011502000490號
電信業務許可證編號：滬B2-20190700
