露点差 meaning in English

dew point spread
dew-point spread

In order to make clear the changing situation about various meteorological element fields during the heavy rain . the diagnostic analysis in three aspects was done in this text : the vapor conditions , in which the difference of the temperature and dew point , relative humidity , vapor flux and the divergence of vapor flux were discussed ; the dynamic and thermodynamic conditions , vorticity , divergence and vertical velocity were analyzed ; the vertical layer condition , which included potential temperature , static stability , convective ( potential ) instability and the vertical profile of eight physical fields over the observatory of shenyang
为了弄清这次暴雨过程各气象要素场的演变情况，分三方面对暴雨的水汽条件(使用了温度露点差、相对湿度、水汽通量和水汽通量散度) 、动力条件(使用了散度、涡度和垂直速度)和垂直层结条件(使用了位温、静力稳定度和潜在不稳定度以及沈阳单站的8个物理量的垂直廓线)等的变化，分别进行了诊断分析。