计算结果表明，可降水量和相应的地面水汽压之间，存在着良好的数值对应关系。
The calculating results show that the precipitable water is well related with the ground water vapor pressure.
本文通过对GPS湿延迟和水汽辐射计、GPS可降水量与无线电探空资料的比较，进行了GPS气象可靠性检核研究。
The reliable verification of GPS-meteorology has been studied with the comparisons of GPS Zenith wet delay and water vapor radiometer, GPS precipitable water vapor and radiosonde.
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