A.5% B.3% C.15% D.20%
A.標稱值的±1.0% B.標稱值的±2.0% C.分度值的±2.0% D.分度值的±1.0%
A.2級標準測力儀 B.準確到±5%的法碼 C.1級標準測力儀 D.準確到±3%的法碼