topsoils 

  1. 名詞
表土, 表層土
上層土

    
                        
    2. 
                                            

                

            

            
            

                

                
例句

                

                    
    
                                                    
  1. 
                                The southern part has coarse-textured subsoils and loamy topsoils .                            
    2. 
                                                    
  2. 
                                Topsoils are thin and poor because the glaciers had abraded down to the bedrock.                            
    3. 
                                                    
  3. 
                                The bedrock is covered by glaciolacustrine deposits which make up the sandy topsoils of the barrens.                            
    4. 
                                                    
  4. 
                                The Miramichi River valley supports some farming, mostly located on the better topsoils within the floodplain.                            
    5. 
                                                    
  5. 
                                Topsoils there are sandy, but the subsoils have a much higher content of clay and the soils are relatively fertile.                            
    6.