functional reliability的用法和樣例：
例句
- Automatic control system using water pressure, water level control to improve performance, increase reliability of work.
採用氣壓水位自動控制系統，改善水位控制性能，提高了工作可靠性。 - The statistic comparison before and after optimization shows that the load fluctuation of cutting head is evidently reduced, which increases working reliability of roadheader.
優化前後統計數據表明，截割頭的載荷波動明顯降低，提高了掘進機的工作可靠性。
