回声高度 – phrases

Terms containing 回声高度 | all forms | in specified order only

Subject	Chinese	English
plast.	回声高度程度	height of echo
expl.	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 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