Strong radar echoes and positive-negative velocity and head wind area are indicative to the heavy rainfall event.
强雷达回波和正负速度对、逆风区等特征对强降水具有指示意义。
The utility model relates to an exhaust duct that prevents head wind, especially to a movable air discharging door type one-way air exhaust device.
本实用新型涉及一种防逆风排风管，特别是涉及一种活动排风门式的单向 排风装置。
Eg. The entire ship paused and shuddered as the sails were taken aback by a sudden strong head wind.
原为海上用语，只游艇等在海面上扬帆行驶时，风向突然改变，帆从正面受到强风袭击而“被吹翻过来”
Through the analyses of results of simulation, the solution about head wind control is presented that GPS orientation technology and the measured data of velocity should be adopted.
并通过对仿真结果的分析，提出在系统着陆期间利用GPS定位和测速数据实行逆风控制的方案。
Through the analyses of results of simulation, the solution about head wind control is presented that GPS orientation technology and the measured data of velocity should be adopted.
并通过对仿真结果的分析，提出在系统着陆期间利用GPS定位和测速数据实行逆风控制的方案。
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