Pete Kibel, managing director at Fishtek Marine, said: "We have now developed a highly effective system that will protect fish in the Severn Estuary and potentially be an option for many more power stations throughout the world."
借助光栅原理，让屏幕发出的光只能从正面特定角度范围内看到，从而实现「大角度防窥」的效果：
。爱思助手下载最新版本对此有专业解读
Фото: Yan Dorbronosov / Reuters
1982年，习近平同志赴正定工作。在调研中得知，由于粮食征购任务过重，当地一些农民口粮不够，只好偷偷去外县换红薯干儿吃。