You will get an error if you attempt to create hard links that cross file systems or that are for directories.
如果您试图创建跨越文件系统或用于目录的硬链接，您会得到一个错误。
2
The horizontal cross section of the pyramid is square at any level, with each side measuring 229 m (751 ft) in length. The maximum error between side lengths is astonishingly less than 0.1%.
Take the first cross section as an example, and the calculation formula of flexural capacity of composite beams is obtained by using the error transfer formula of mathematical statistics.