在模型实验应力分析中采用脆性涂料法确定模型机架最大主应力部位和主应力方向，采用电阻应变测量法确定模型机架的主应力水平。
Stress coating is adopted in order to determine the points and directions of the most main stress of the frame, resistance strain gauge method used for determining main stress value of the frame.
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