Warning: file_put_contents(): Only 0 of 5746 bytes written, possibly out of free disk space in /home/www/wwwroot/ndsq.cn/index.php on line 55 free space英英字典_free space剑桥英语解释_free space柯林斯英文解释_开心英文字典_柠咚词
1. N a region that has no gravitational and electromagnetic fields: used as an absolute standard 自由空间; 没有重力场和电磁场的区域，被用作绝对标准 (Also called (no longer in technical usage) vacuum)