大烟道 | |
met. | collecting main; collector main; large chamber; main duct; suction main; windmain |
排灰 | |
shipb. | ash discharge |
刮板拉链输送机 | |
met. | drag link conveyer; drawing link conveyer |
| |||
collecting main; collector main; large chamber; main duct; suction main; windmain |
大烟道 : 5 phrases in 1 subject |
Metallurgy | 5 |