Smell the cigarette smoke on the lifting of fatigue play a role.
吸闻此烟，对解除疲劳起着一定的作用。
Objective Using surface electromyography (SEMG) technique to evaluate repetitive lifting task induced fatigue of back muscles.
目的应用表面肌电信号(SEMG)技术对重复性搬举所致的竖脊肌疲劳进行评价。
The paper builds the models at different stages of lifting operation on the basis of analysis of loads influencing crane structure fatigue.
在分析影响起重机金属结构疲劳载荷情况的基础上，给出了起重机主梁起吊过程中不同阶段的动力学模型。
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