(IP 
  (NP-SBJ 
    (NN 科学家))
                    
  (VP 
    (VP 
      (VP 
        (VV 利用)
                    
        (NP-OBJ 
          (NP-APP 
            (NN 全球)
                    
            (NN 定位)
                    
            (NN 系统)
                    
            (CC 和)
                    
            (NN 激光)
                    
            (NN 测距仪)
                    
            (ETC 等))
                    
          (NP 
            (ADJP 
              (JJ 高))
                    
            (NP 
              (NN 科技)))
                    
          (NP 
            (NN 手段))))
                    
      (VP 
        (PP-DIR 
          (P 对)
                    
          (NP 
            (ADJP 
              (JJ 大))
                    
            (NP 
              (NN 峡谷))))
                    
        (VP 
          (VV 进行)
                    
          (NP-OBJ 
            (NN 测量)))))))
arg0: 
                    科学家 
                
arg1: 
                    对 大 峡谷