Far Infrared Rays (FIR) are well beyond the ability the naked eye to see.

远（区）红外线的能力远远超出肉眼看到的。

youdao

Far Infrared Rays (FIR) are well beyond the ability the naked eye to see.

远（区）红外线的能力远远超出肉眼看到的。

youdao