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二号缓冲器的结构及一般强度计算 二号缓冲器的缓冲部分系由8个大外环簧,4个小外环簧,9个闭口内环簧,2个
Structure and general strength calculation of No. 2 bumper The buffer part of No. 2 bumper consists of 8 large outer ring springs, 4 small outer ring springs, 9 closed inner ring springs, 2