Upper-extremity amputations were less frequent than lower-extremity amputations.
上肢截肢比下肢截肢少。
2
Surveys at two universities found that 40 to 50 percent of undergraduates experience upper-extremity pain from using their computers.
在两所大学调查发现，40%至50%的大学生经历因使用电脑而导致的上下肢疼痛。
3
It has upper limbs, blood meridian dredging harmonic function, on the cardiovascular system, respiratory system disease and upperextremity pain have a good effect.