Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/be2011bf2ae2e35610c07bfee31e526c.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 plano convex lens是什么意思，plano convex lens的翻译，plano convex lens音标、读音、用法和例句_沉淀汉英词典