High-tech devices make holiday travel more comfortable

        

      

      

        
          By Wang Danning and Chen Ziyan | 
          chinadaily.com.cn |
          Updated: 2024-02-05 17:05
          
          
          
          
        


        
      

      

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4. Unmanned boat
 

 
  
 

   Workers carry out preparation work in Chengdu, Southwest China's Sichuan province, on Jan 27, 2024. [Photo/Xinhua] 
 
 

 

Unmanned boats have been used for bridge inspection along the Chengdu-Chongqing intercity railway. Workers can measure the cross-section of riverbed in upstream and downstream areas with a remote control, and collect accurate and comprehensive data, thus offering a scientific basis for bridge maintenance.
 

 
  
 

   A worker operates an unmanned boat in Chengdu, Southwest China's Sichuan province, on Jan 27, 2024. [Photo/Xinhua] 
 
 

 

        


        
        
      

        
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