By statistical analysis,their distribution charac- ters are deduced that the non-production waiting time follows the Erlang distribution,while the fuel price fol- lows Weibull distribution.

• 通过统计数据,指出它们的分布特点,并通过假设检验,得到非生产停泊时间符合爱尔朗分布,燃油价格符合威布尔分布的结论。