这数值与理论的最小值很接近.This value corresponds closely to the theoretical minimum.因此, 在足够高的能量下,吸收系数便由最小值开始增加.Therefore, at sufficiently high energies the absorption coefficient begins to increase after passing through a minimum.错误...
Functions : lower the blood pressure and blood fat, prevent from cardiovascular diseases.降血压、降血脂 、 预防脑血栓等心脑血管疾病.To prevent from speaking or crying out by using a gag.堵住嘴塞住嘴以防说活或喊叫.It could prevent from dust , dirty as we...