[das]
管vapor pipe, vent pipe, steam-exhaust pipe, steam exhaust piping
[die] 废
管路。
管exhaust steam pipe, steam-exhaust pipe, steam exhaust piping, vent pipe
[die] 废
管路;
管
exhaust steam pipe, steam-exhaust pipe, steam exhaust piping, vent pipe
[die]
气管,泄放管
vent pipe
欧 路 软 件