The model follows Weibull distribution, and in considering shortage whole backlogging and partial backlogging are distinguished.其中商品的退化率服从韦伯分配, 并且缺货期间的缺货数量则考虑全部待补及部分待补两种情形....
那是个阴冷的下午。It was a chilly afternoon.他们引我来到一间阴冷的会客室.They showed me into a bleak waiting room.我简直受不了这潮湿而阴冷的天气.I can hardly stand these wet and cold days....