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.
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.
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