Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/e444222959003d8d734725c6a2e94923.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 discrete variable optimization design是什么意思，discrete variable optimization design的翻译，discrete variable optimization design音标、读音、用法和例句_果味酸柯林斯词典