The ultraviolet absorption peak narrows, absorption intensity increases, the absorption margin becomes steep and moves to longer wavelength, the optical band gap decreases as well.
紫外吸收峰变窄，强度增加，吸收边变得陡峭并向长波方向移动，光学带隙降低。
2
We expect that by the second quarter 2011, steel prices will peak at a level that will allow steel mills in 2011 to only generate a 'fair' profit margin.