每个属性旁边的图标表示使用固定值还是可变值。
The icon beside each property indicates the use of fixed or variable values.
元素的类型不允许使用固定值约束或默认值约束。
Element's type does not allow fixed or default value constraint.
在这里，它只是针对固定值检查提供的用户名和密码，但它可以轻松使用一个数据库查询或其他机制替代。
In this case, it just checks the supplied username and password against fixed values, but it could easily use a database lookup or other mechanism instead.
使用Query的一个非常有用的方法是在执行之前将它的一些变量设置为固定值。
A useful technique to use with a Query is to set some of its variables to fixed values prior to execution.
用有限元方法做泵的强度验算，一般是使用壳单元，泵的厚度为一个固定值。
When the finite element method is used in the pump strength analysis, the shell element is often used, which has the same thickness for the whole pump.
用有限元方法做泵的强度验算，一般是使用壳单元，泵的厚度为一个固定值。
When the finite element method is used in the pump strength analysis, the shell element is often used, which has the same thickness for the whole pump.
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