按需

• Subscriptions provide an alternative to running a report on demand
  订阅提供了一种可替代按需运行报表的方法。
• All print processing is performed on demand and on the client computer
  所有打印处理都是在客户机上按需执行的。
• The on demand operating environment
  按需操作环境
• Implementation , which is used to compare keys whenever comparisons are required
  实现，该实现用于按需比较各键。
• To test your on - demand assembly
  测试按需程序集
• Free on - demand seminars
  免费的按需点播研讨会
• This approach has practical limitations with respect to demand paging
  这种方法对于按需分页来说具有一些实际的限制。
• Study on improved secure ad hoc on - demand distance vector routing protocol
  改进型安全自组网按需距离向量路由协议研究
• Implanted demand pacemaker
  埋藏式按需起搏器
• The capacity is automatically increased as required through reallocation
  中添加元素，容量通过重新分配按需自动增加。