function Rguji=shixi2_2(t,thetaa1,thetaa2,thetab1,thetab2,thetac,mm)

t 是要求系统生存的寿命 thetaa1 是元件A1的数学期望

thetaa2 是元件A2的数学期望 thetab1 是元件B1的数学期望

thetab2 是元件B2的数学期望 thetac是元件c的数学期望-

































































































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function Rguji = shixi2_2 (t, thetaa1, thetaa2, thetab1, thetab2, thetac, mm)

　t is the survival of life requires a system element A1　thetaa1 is the mathematical expectation

　thetaa2 element A2 is the mathematical expectation　thetab1 element B1 is the mathematical expectation

　thetab2 element B2 is the mathematical expectation　thetac component c is the mathematical expectation