然后进行天顶湿延迟至可降水量的转换，结合现场的气象资料进行对比分析。
After that wet zenith delay is calculated into PWV, and field meteorologic data are combined to analyzing.
首先，针对目前湿延迟模型精度偏低，提出使用外部气象数据近实时反演湿延迟。
First, wet delay for the current model of low precision and made use of external inversion of wet weather data in near real time delay.
研究结果表明：GPS是一种与探空观测有可比性的大气静力延迟和湿延迟测量手段。
The results show that GPS is an instrument for detecting atmospheric ZHD and ZWD with a detection accuracy comparable with radiosonde.
通过对算例的分析，提出需要解决的问题：整周模糊度、实时钟差和天顶湿延迟的估计方法。
After the examples are analyzed, there are problems which need to be solved such as ambiguity, real-time clock bias error and the estimate method of zenith wet delay.
建立了双频载波相位观测模型，并将其进行无电离层延迟化简，用最小二乘原理推导了天顶湿延迟的估值公式。
The dual-frequency carrier phase observation equation is built and ionosphere-free predigested, the estimate formula of zenith wet delay is deduced with least square method.
GPS站点测得的静力延迟和湿延迟呈现出不同特征，静力延迟有明显的周期变化，湿延迟的变化与天气过程相关联。
The ZHD and ZWD from different GPS sites exhibit their individual features that ZHD has an obvious periodic change and ZWD is related to weather.
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.
分析表明对流层延迟的湿分量在时间和空间上变化较快，占对流层延迟量10%左右的湿分量是研究的难点。
The analysis showed that the wet component which comprise of 10% of troposphere delay varies quickly in temporal and space and is a studying difficulty of troposphere delay.
延迟追氮时期可使籽粒蛋白质含量和干、湿面筋含量有较大幅度地提高，但对产量形成不利。
Delaying topdressing nitrogen could evidently improve protein and gluten content, but it was disadvantageous to yield formation.
该光学膜具有高延迟值、透明性和耐透湿性。
The optical film has a high retardation value, the transparency and the moisture permeability resistance.
该光学膜具有高延迟值、透明性和耐透湿性。
The optical film has a high retardation value, the transparency and the moisture permeability resistance.
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