maintenance task的用法和樣例：
例句
- Optimizer statistics are automatically refreshed using the automatic maintenance task infrastructure.
優化器的統計信息是使用自動維護任務基礎結構來進行刷新的。 - The costs of maintenance tasks are to be monitored for the individual areas of your system or operational structure.
為系統各領域或操作結構監視維護任務成本時。
