Terms containing side heading method

Subject	English	Chinese
railw.	side heading method	侧壁导坑法
tech.	side heading method	侧壁导洞法
railw.	single side heading method	单侧导坑法
railw.	top and twin-side bottom heading method	品字形导坑法
railw.	twin-side heading method	双侧导坑法
tech.	twin-side heading method	双侧壁导洞法