etched cavity

例句：

1. 1. The engineer carefully etched the cavity in the metal to ensure it was perfectly aligned.
   工程师仔细地在金属中刻蚀出腔室，以确保它完美对齐。
2. 2.The scientist used a laser to carve a cavity into the rock for further analysis.
   科学家使用激光在岩石上刻出一个腔室以便进一步分析。
3. 3. The artist created a beautiful sculpture by etching intricate patterns into the wood.
   艺术家通过在木头上刻出复杂的图案创作出了一件美丽的雕塑作品。