increase in temperature

English	Chinese
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
There is a substantial increase in temperature from 13°C at an altitude of 180 metres to a temperature of 18°C at an altitude of 270 metres	温度在180米高度时为13度、到270米高度时为18度、增幅很大