plural schemata, 1796, in Kantian philosophy ("a product of the imagination intermediary between an image and a concept"), from Greek skhema (see scheme (n.)). Meaning "diagrammatic representation" is from 1890; general sense of "hypothetical outline" is by 1939.
中文解释
1、注意区别这两个同源词：schema, scheme.2. 画一个图，问小朋友是车吗？
实用例句
1. XML uses DTD or Schema to define grammar.
XML通过DTD或Schema定义文法.
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2. First, DTD and XML Schema are introduced, and these two patterns are compared.
首先, 论文介绍了XML的两种模式DTD和Schema,比较了两种模式的优缺点.
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3. Schema update failed: No values for msDS - IntId are available.
架构更新失败: 没有 msDS -IntId的值.
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4. Schema update failed: There are no link identifiers available.
架构升级失败: 链接标识符不可用.
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5. Ad Service: Unsupported schema version. Please check for product updates.