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["标准砝码等级"]
["      等级\n重量","E1(±mg) ","E2(±mg)","F1（±mg）","F2（±mg）","M1（±mg）","M2（±mg）","M3（±mg）"]
["1mg",0.002,0.006,0.02,0.06,0.2,"/","/"]
["2mg",0.002,0.006,0.02,0.06,0.2,"/","/"]
["5mg",0.002,0.006,0.02,0.06,0.2,"/","/"]
["10mg",0.002,0.008,0.025,0.08,0.25,"/","/"]
["20mg",0.003,0.01,0.03,0.1,0.3,"/","/"]
["50mg",0.004,0.012,0.04,0.12,0.4,"/","/"]
["100mg",0.005,0.015,0.05,0.15,0.5,1.5,"/"]
["200mg",0.006,0.02,0.06,0.2,0.6,2,"/"]
["500mg",0.008,0.025,0.08,0.25,0.8,2.5,"/"]
["1g",0.01,0.03,0.1,0.3,1,3,10]
["2g",0.012,0.04,0.12,0.4,1.2,4,12]
["5g",0.015,0.05,0.15,0.5,1.5,5,15]
["10g",0.02,0.06,0.2,0.6,2,6,20]
["20g",0.025,0.08,0.25,0.8,2.5,8,25]
["50g",0.03,0.1,0.3,1,3,10,30]
["100g",0.05,0.15,0.5,1.5,5,15,50]
["200g",0.1,0.3,1,3,10,30,100]
["500g",0.25,0.75,2.5,7.5,25,75,250]
["1kg",0.5,1.5,5,15,50,150,500]
["2kg",1,3,10,30,100,300,1000]
["5kg",2.5,7.5,25,75,250,750,2500]
["10kg",5,15,50,150,500,1500,5000]
["20kg",10,30,100,300,1000,3000,10000]
["50kg",25,75,250,750,2500,7500,25000]

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