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Table 3 Grade division of duration and labor intensity index

From: Research of ergonomic comprehensive evaluation for suit production operation based on hybrid method with IAHP and gray entropy

Evaluation level Very poor Poor Fair Good Excellent
Duration(U21) [360, 300) [120, 300) [60, 120) [30, 60) [0, 30)
Labor intensity index (U22) [25, 30) [20, 25) [15, 20) [10, 15) [0, 10)