The failure curve of the horizontal machine center during the forepart fault is degressive, the internal time is Weibull distribution.
卧式加工中心在早期故障期时，故障率曲线为递减型，间隔时间服从威布尔分布。
We also obtain the distributions of failure number which server takes in a generalized service time, and show that it follows a modified geometric distribution.
我们也得到在广义服务时间内服务台发生故障次数的分布，证明它服从一个修正的几何分布。
The repair facility has an exponential failure distribution and a general replacement time distribution.
假设修理设备具有指数失效分布和一般更换时间分布。
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