After all,eye strain (疲劳) is a real issue and can lead to poor sleep and even eye diseases.The glasses can cost 15 dollars all the way up to several hundred dollars.But do they work? Elizabeth Esparaz,an ophthalmologist (眼科专家) in Cleveland,Ohio,says the scie...
Our results are in contrast to those reported in lettuce by Razzak et al. [6] as shoot K tended to decrease when GL irradiance was increased from 0 to 70 µmol m−2 s−1 while RL and BL were sustained at 188 and 47 µmol m−2 s−1, respectively. The enhanced nutrient...