常衡 chánghéng
          
              chánghéng 
              
              noun 
              avoirdupois system 
              Domain: Modern Chinese 现代汉语
              
                , Subdomain:  
              
              
                , Concept:  
              
              
              
                Notes: Older system of pounds and ounces (Guoyu '常衡'; Mathews 1931 '常衡', p. 25; Wikipedia '常衡')