middle infrared的用法和樣例：
例句
- The range of the spectrum in which heat is radiated mostly lies within the infrared portion.
輻射熱的光譜段大部分落在紅外區。 - At infrared wavelenths the region is less opaque, and cool protostars are expected to emit most of their energy in the infrared.
在紅外波長(cháng)范圍，暗云區是較透明的，而冷的原恒星應在紅外區發(fā)射其能量的大部分。
