It redesigns the buffers and maintains the buffer in many - to - one environment.

重新设计缓冲区,维护多对一情况下的缓冲区.

互联网

For relationship involving two entity sets, there can be relationships like one - to - oneone - to - many, many - to - one and many - to - many.

对于涉及两个实体集合的关系, 可能存在像一对一、一对多 、 多对一和多对多那样的关系.

互联网