system of difference constraints 差分约束系统 ; 则称其为差分约束系统
Also check that changing the value of unbounded constraints won't make any difference to the solution, as expected.
还要检查修改无边界约束的值不会对解答造成任何变化,这正是我们期望的。
Another difference observed is the flexibility in applying the constraints defined in XML Schema or Schematron.
观察到的另一个区别是在XML schema或schematron中定义的约束在应用方面的灵活性。
The most visible difference between XML Schema and Schematron is the quality of error messages generated during the checking of constraints of type I, which are structural constraints.
XML Schema 与 Schematron 最明显的区别就是在对类型 I 的结构性约束的检查过程中产生的错误消息的质量。
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