Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/62b1bb547c3da073fbb466eaef6d0b40.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 electromagnetic spectrum英英字典_electromagnetic spectrum剑桥英语解释_electromagnetic spectrum柯林斯英文解释_94生活常识网有道词典
1. N the complete range of electromagnetic radiation from the longest radio waves (wavelength 105 metres) to the shortest gamma radiation (wavelength 10–13 metre) 電磁譜