Design by contract also makes explicit the contract definition that is more implicit in unit tests.
契约式设计也做了显式的合约定义，而在单元测试中这些更隐式。
Certain forms of rules are implicit in the definition of the business types in the model, and manifest in UML and entity relationship (er) models of the business types of the modeled domain.
有些形式的规则在模型中的业务类型定义中是隐式的，它们出现在被建模领域的业务类型的UML和实体关系(ER)模型中。
There are two ways to define SOAP headers in a WSDL definition: explicit and implicit headers.
在WSDL定义中有两种定义SOAP消息头的方式：显式和隐式消息头。
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