Mr . bevis leung has been the senior group manager - marketing services of the company since june 2003 梁伟成先生自2003年6月出任富城集团高级集团经理-市场服务一职。
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Mr . bevis leung , senor group manager - marketing services of urban group pointed out , " urban group 富城集团高级集团经理市场服务梁伟成先生指出：富城集团于2003年推出
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( 2 ) model correction and comparison in the process of conversion from zenith day delay to gps water vapor and precision evaluation . saastamoinen ( sa ) model and hopfield ( h ) for dry delay and bevis model for atmospheric weighted temperature are adopted ( 2 )模型订正与比较在gps水汽反演过程中，一般干延迟和大气加权平均温度的计算是采用“普适性”模型，目前应用较多的有saastamoinen ( sa )模型、 hopfield ( h )模型和bevis模型。
