分析了细纱牵伸过程中影响牵伸力的因素，上胶圈张力状态与成纱质量的关系。
Influence factor on draft force in spinning draft and relation of top apron tension & yarn quality is analyzed.
目的探讨躯干肌肌力训练与牵伸对慢性腰痛患者的疗效和预防其复发的效果。
Objective To explore the effect and prevention of truck muscle strength training and stretch on patients with chronic low back pain.
目的探讨躯干肌肌力训练与牵伸对慢性腰痛患者的疗效和预防其复发的效果。
Objective To explore the effect and prevention of truck muscle strength training and stretch on patients with chronic low back pain.
应用推荐