mean temperature of air ;
例句:
The average air temperature should be about 24 degrees celsius Celsius.
番茄生长的平均气温必须在24摄氏度上下.
Climate, the average annual temperature of 15 degrees or so.
气候宜人, 年平均气温在15摄氏度左右.
The average day temperature below 5 � � C, no water.
当日平均气温低于5℃时, 不得浇水.