Warning: Missing argument 3 for write(), called in /www/wwwroot/biwei1.cn/incs/robot.php on line 68 and defined in /www/wwwroot/biwei1.cn/incs/data.php on line 487 加州试验在水渠上建太阳能电池板,这样既不占地,又能减少宝贵的淡水蒸发损失,太阳能电池板还能获得水汽的自然降温提高光伏转换效率。Solar Power: Solar panels on water canals could gen…