您要查找的是不是：
- Ordinary法Ordinary method
- ordinary leakage (保险)通常漏损
- ordinary pitch (其值为37.5)常用屋面坡度
- co-routine是一个可以在中途停止和在稍候在那停止的点上继续运行的子程序。A co-routine is a subroutine that can stop in the middle, and start back up later at the point you stopped. For example
