In an ideal world, each functional area such as process services, would be "pure", offering only one class of services in order to provide a separation of concerns.

在理想情况下，每个功能区(如流程服务)都是“纯”功能区，为了实现关注点分离仅提供了一个服务类。

youdao

What's more, in pure DBC terms, a class that abides by DBC rules has a contract with the outside world about the internal consistency that it will maintain, which is known as the class invariant.

另外，在纯dbc术语中，遵循dbc规则的类针对其将维护的内部一致性与外部世界有一个契约，即人所共知的类不变式。

youdao

In the functional version, I extracted the pure functions (ones that have no side-effects) into their own class, calling them by supplying parameter values.

在函数式版本中，我提取了纯函数(即没有副作用的函数)并将其放入它们各自的类中，通过提供参数值来调用它们。

youdao

But if Chelsea's third goal was fortunate, their fourth was pure class.

BBC: Middlesbrough 0-5 Chelsea

It was just pure class and he still has it in him.

BBC: Can Joe Cole fulfil early promise and revive Liverpool?

Intended to support both the enterprise and rugged markets, these products are expected to deliver more than 400, 000 random write transactions per second, scale up to more than 5TB of pure solid state storage capacity, ensure enterprise-class drive life endurance, and offered in SAS, SATA, Fibre Channel, and PCIe interfaces.

ENGADGET: BiTMICRO's next-gen SSD controller to deliver blazing speed and big storage in 2012