Warning: file_put_contents(): Only 0 of 4996 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/5678977.com/index.php on line 55 supply and exhaust ventilation例句_supply and exhaust ventilation英汉例句_supply and exhaust ventilation双解例句_加林查网西语词典
The ventilation system consists of a supply and exhaust air unit with a counterflow heat exchanger which provides 85% heat recovery. 通風通風系統包括一個送風單元，一個排風單元，與一個可廻收85%熱能的逆流式換熱器。