常見例句雙語例句How do you define element uniqueness by multiple keys/attributes?你如何通過多個鍵/屬性定義元素的獨特性?At a deeper level, you may want to have constraints such as uniqueness of an element value, multiplicity of an element, or restriction of the values of an element.在更高級別上,您可能希望使用限制,比如元素值的唯一性和某個元素的多樣性,或限制元素的值。The first part of the expression contains the namespace declarations (in this case, UBL 2.0 Invoice) and some auxiliary namespaces; these are used to ensure uniqueness of all element names used.表達式的第一部分包含名稱空間聲明(在這裡是 UBL 2.0 Invoice)和一些輔助名稱空間;這些名稱空間用於確保使用的所有元素名的惟一性。 返回 uniqueness element