Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/cd97a55888d07be7d57224562047c475.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 instantaneous position velocity是什么意思，instantaneous position velocity的翻译，instantaneous position velocity音标、读音、用法和例句_果味酸柯林斯词典