tympanic wall的用法和樣例：
例句
- The wall must be protected against chemical attack from highly corrosive components of the combusting gases.
必須把室壁保護起來以防止來自燃氣的高度腐蝕性成分的化學侵蝕。 - Although the presence of fuel-rich boundary injection apparently degrades engine stability, it is generally necessary to enhance chamber wall endurance.
儘管富燃料邊界噴射的存在顯然降低了發動機的穩定性，但通常這是為增強室壁的耐久性所必需的。
