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。

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Wet or dry concrete surface, Concrete component surface, Brick, Mortar, Metal various hydration layer surface, Various SBS linoleum surface, Toilet, The basement;

潮湿或干燥的混凝土表面； 混凝土构件表面； 砖石； 砂浆； 金属各种保湿层表面； 各种SBS油毡表面； 卫生间；

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The wet market is a kind of city retailing and is an important component of the community commerce in the city, which is related closely with the daily life of the townsman.

农贸市场是城市零售业态的一种，是城市社区商业的重要组成部分，与城市居民的日常生活息息相关。

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