To compare the efficacy of N2-RF sysytem vs Ar-He system for solid tumors.Patients from two institutions were randomly a......

为了研究氮气在宽光谱范围内的色散特性，基于气体色散理论，在标准条件下（温度为293.15 K，气压为101325 Pa），利用二阶Sellmeier公式和最小......