range为名词用法，不是动词用法，不需要加ing

We may reasonably adopt the constant value 2.09 as representative of the temperature range 10°C to 30°C. 

我们可以合理地采用恒定值2.09来代表10°C到30°C的温度范围。

range  n.幅度;等级;范围(英文解释： A range is the complete group that is included between two points on a scale of measurement or quality.）

The average age range is between 35 and 55.  

平均年龄在35岁到55岁之间。

properties available in the price range they are looking for.  

在他们寻求的价格范围内的房产

 The 120mm mortar has a range of 18,000 yards. 

口径为120毫米的迫击炮的射程是1.8万码。

The trees on the mountains within my range of vision had all been felled.

山上我视野范围内的树木都被砍倒了。