Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/3e1c38979f5188208db48d5408cddb94.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 vector field英英字典_vector field剑桥英语解释_vector field柯林斯英文解释_沉淀汉英词典
1. N a region of space under the influence of some vector quantity, such as magnetic field strength, in which the quantity takes a unique vector value at every point of the region 矢量场