traction bars
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相关词汇
traction bar
traction
traction-screw osteosynthesis
tractional detachment of retina
traction motor cut-out switch
traction/brake characteristic
traction esophageal diverticulum
traction variable-speed control
traction-countertraction method
traction by pulling and extension
traction instrument of palm-bone
traction equipment for spinal cord
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