Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/4733364a6225e63e7059222417b64389.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 vector sum英英字典_vector sum剑桥英语解释_vector sum柯林斯英文解释_94生活常识网有道词典
1. N a vector whose length and direction are represented by the diagonal of a parallelogram whose sides represent the given vectors 矢量和→see also resultant