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Explosives and Explosive Ordnance Disposal
containing
Ground Effect
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An of the degree to which air vibration levels will be affected by the effects of meteorology requires that temperature, wind speed and wind direction be measured or evaluated both at the surface and at levels above the ground
评估空气振动能级受气象效应影响的程度、需要测量或评定地面的以及地面上空的温度、风速和风向
Evaluations of meteorological effects require that the air temperature and wind velocity be known at levels above the ground,preferably up to 900 metres
要想评价气象影响、务必要知道地面上空并且最好在900 米以上的大气温度和风速
observation of ground vibration effect from blasting in mine
矿山爆破地震效应观测
直观和用仪器对矿山爆破地震参数及其效应进行观测、描述和记录的过程。爆破地震效应观测包括地表振动参数的测量和建〈构〉筑物被破坏情况的调查
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