fr from meaning in English
自从
Examples
- Under the different structures " combination , the article had researched the change of the fr from the entrance to the exit of the tortuous path , and obtained the properties of the torrent and slow flow in the tortuous path
研究了不同结构组合条件下，从弯道进口到出口的f _ r数变化，进而得到弯道内急流和缓流特性。