特定地址

• While dependent on implementation details , this approach does not tend to facilitate the substitution of service implementations ; service requester code perhaps generated by development tools will often bind directly to specific service provider implementations through specific protocols at specific addresses
  虽然这种方法依赖于实现细节，但是它往往并不能使服务实现的替代变得简单；服务请求者代码（也可能是开发工具生成的）通常通过特定地址的特定协议直接绑定到具体的服务提供者实现。