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模具常用矩形弹簧:轻小荷重 TF (黄色),轻荷重 TL (蓝色),中荷重 TM (红色),重荷重 TH (绿色),极荷重 TB (茶色)。塑胶模用耐热弹簧 TY (紫色)。大型覆盖件模具中,一个直径相同的红色中型矩形弹簧 SWM50-100 、 SWM50-150 ,均压缩 28% 时,( )。 A 前者的作用力大 B 后者的作用力大 C 两者的作用力一样大 D 无法比较
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