If an attribute depends on only part of a multi-valued key, then remove it to a separate table.
如果一个属性仅依赖于一个多重主键的一部分，则将该属性转移到一个单独的表中。
The key point of the part is how the suburb employment centers promote the formation of the multi-central metropolitan area as well as how they cause the central cities feebly.
这部分论述的重点是郊区就业中心是如何促进多中心的大都市区的形成以及如何导致中心城市的衰弱。
The pump consists of prime motor, multi stage centrifugal pump, seat, wire and control, in which the key part is the prime motor.
它由电念头、多级离心泵、底座、电缆和节制屏构成，个中电念头是该系统的要害部件。
The last part of this thesis probes into the key point of my thesis-the strategy of teaching practice reform-achieving multi-dimensional and effective interaction.
文章的最后一部分是有关教育实习变革的策略——形成多维有效互动，这是本文着力要解决的问题。
As an important part of multi-rope friction hoist, steel rope is the key to the safe operation of all the equipments.
而钢丝绳作为多绳提升机的重要组成部分，是整个设备安全运行的关键。
As an important part of multi-rope friction hoist, steel rope is the key to the safe operation of all the equipments.
而钢丝绳作为多绳提升机的重要组成部分，是整个设备安全运行的关键。
应用推荐