基本解釋[數(shù)學(xué)]唯一性元英漢例句雙語例句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(dú)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(dá)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。uniqueness element更多例句詞組短語短語element uniqueness 元件唯一性uniqueness element更多詞組專業(yè)釋義數(shù)學(xué)唯一性元