Warning: file_put_contents(): Only 0 of 4893 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/5356789.com/index.php on line 55 monochromatic approximation例句_monochromatic approximation英汉例句_monochromatic approximation双解例句_橘子朗文词典
A satisfactory approximation to monochromatic light can be obtained with a filter placed in front of the arc . 在碳弧前麪放一個濾光片就可以得到令人滿意的近單色光。 www.translation-dictionary.net