In the latter case, the quotas are usually combined with a system of exchangecontrol in an attempt to prevent a balance of payments deficit.
后一种配额常与外汇管制相结合，以防出现国际收支赤字。
2
The Jazz source code controlsystem allow developers to exchange change sets easily, and build awareness provides immediate feedback about a broken build.
Jazz源代码控制系统，使开发人员能够很容易地交换设置，并增强意识对坏掉的版本提供即时的反馈。
3
This is only a pointer to some of the problems that may lie ahead - issues of command and control, data exchange and the cost of a truly comprehensive system.