A fixed value is also automatically assigned to the attribute , and you cannot specify another value 固定值是也是系统自动分派给属性的。并且，一旦指定了固定值，你就不能指定其它值了。
Use enumerated attribute values when you want the attribute values to be one of a fixed set of legal values 当你希望属性值是一组合法的固定值时，那么，你不妨使用“列举属性值”的方法。
A variable so related to another that for each value assumed by one there is a value determined for the other 应变量，函数一个与他量有关联的变量，这一量中的任何一值都能在他量中找到对应的固定值
A variable so related to another that for each value assumed by one there is a value determined for the other 应变量，函数一个与他量有关联的变量，这一量中的任何一值都能在他量中找到对应的固定值。
But in the course of magnetic field computation the permeability distribution in soft magnetic materials has to be supposed as known and fixed 该程序在磁场计算中只能假设软磁材料中的磁导率都是已知的固定值。
You can declare an attribute on an element that is always considered present , and will always have a given value the fixed value 您可以对一个元素声明一个属性，使它被认为始终是存在的并且将始终具有一个给定值（固定值） 。
To make sure that the views can be maintained correctly and return consistent results , indexed views require fixed values for several set options 为了确保能够正确维护视图并返回一致结果，索引视图需要多个set选项具有固定值。
A rule of correspondence between two sets such that there is a unique element in the second set assigned to each element in the first set 应变量，函数一个与他量有关联的变量，这一量中的任何一值都能在他量中找到对应的固定值。
By expanding test range ( use parameter to replace fixed value ) , you can check out how the application program use multi - group data to carry out the same operation 通过扩大测试范围（用参数替换固定值） ，可以检查应用程序如何使用多组数据来执行相同的操作。
Orbital velocities in spiral galaxies , instead of declining with increasing distance from the galactic center , flatten out to a constant value , as predicted by mond 螺旋星系中的轨道速度并不会随著离开星系中心的距离增加而不停降低，它会平缓下来成为一固定值。
