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....
亲密的知友.它们为我而奏的音乐,/我不想听到还有比这更美的.A sweeter music than they played to me.需要之时方知友.A friend is never known till a man has need.亲密的知友.And found them gentle mates , nor thought to know....
It is a painful experience having the boil lanced.把疖子切开是很痛的。The doctor lanced the boil on his hand.医生用柳叶刀切开他手上的水泡.Tanks lanced on into the enemy's position.坦克车急速冲进敌军阵地....