metallurgical
adjective /ˌmetəˈlɜːdʒɪkl/
  /ˌmetlˈɜːrdʒɪkl/
- connected with the scientific study of metals and their uses冶金学 - Sections of the rails were sent to a laboratory for metallurgical analysis.铁轨的各个部分被送到实验室进行冶金分析。 
 
- Sections of the rails were sent to a laboratory for metallurgical analysis.