每年在期刊装订入藏的时候，总会遇到缺期的问题。我馆近三年入藏期刊缺期情况及原因如下表。从上表可以看出，刊物缺期的原因不外乎两种、一是在邮局、校收发室的投递、分发过程中丢失；一是在全年的读者阅览、借阅过程中丢失。而期刊缺期的直接后果，是影响了馆藏资料的系统? Every year in the periodical binding into Tibet, there will always be the problem of lack of time. The lack of library journals in the past three years in our library and the reasons are as follows. As can be seen from the above table, there are no more than two reasons for the lack of publications. First, they are lost in the delivery and distribution of post offices and sending and receiving rooms. First, they are lost during the reading and borrowing of readers throughout the year. The direct consequence of the lack of periodicals is the system that affects the collection of information?