资讯
laser diodes emitting at 1.57 mu m is discussed. Due to an optimized layer structure, a very high characteristic temperature of 90 K was obtained. As a consequence for episide-up mounted devices, the ...
Forecast issued at 4:20 pm EST on Sunday 22 June 2025. Partly cloudy. Areas of frost and the chance of fog in the morning. Medium chance of showers, most likely in the evening. Light winds becoming ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果