The relationship between the generalized TTT transform order and the usual TTT transform order is investigated, it is founded that the implications are close related to the IFR or DFR property of the life distribution G.
研究了广义试验总时间变换序与年龄性质IFR(increasing failure rate),DFR(decreasing failure rate)的关系以及其关于样本最小与样本最大的封闭性。