1.He said such reports can be a 'useful mechanism provided that they are produced using objective methodology. '
他说这类报告如果是用客观的方法写成，则可成为一种“有用的机制”。
2.Profiles are also a useful mechanism for managing model markings, a necessary element of the MDA transformation process.
对于管理模型标记（MDA转换流程中的必要单元）来说，profile也是有用的机制。
3.A control project is a useful mechanism for coordinating the projects contributing to a stage.
控制项目对于一个阶段的协调项目是很有用的机制。
4.Service partitions can provide a useful mechanism to model inpidual service-oriented (IT) systems.
服务分区可以提供一种有用的机制，以建模单独的面向服务的（IT）系统。
5.If the IMF is robust, this might prove a useful mechanism for asserting accountability.
如果IMF敢做敢当，这有可能成为一种行使问责权的有用机制。
6.Research on efficient and useful mechanism of certificate revocation
一种高效实用的证书验证机制的研究