air temperature – phrases

English	Chinese
air temperature	室温
An increase in air temperature causes an increase in the speed of sound, which means that in these conditions airblast emissions can be focused back toward the ground by atmospheric refraction	大气温度的增高、促使声速增加、这是说在这些条件下、大气折射可将冲击波挡回到地面
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
Variations in air temperature and wind velocity influence the transmission of blast energy through the air	大气温度和风速的变化会影响爆炸能在空气中的传爆