railroad tunnel

常見例句

• Close to the grottos, there is a cinema inside a deserted railway tunnel.
  洞穴的附近有一個(gè)廢棄的鐵路隧道，里面設(shè)有電影院。
• It is shown that an electrified railway tunnel is an effective channel for transmission of language and slow digital signals.
  研究表明，電氣化鐵路隧道是語音和低速數(shù)字信號(hào)傳輸?shù)挠行诺馈?/li> 返回 railroad tunnel