hermetically-sealed instrument

例句：

1. 1. The scientist used a hermetically-sealed instrument to measure the temperature inside the chamber.
   科学家使用一个密封仪器来测量室内的温度。
2. 2. The engineer tested the hermetically-sealed instrument for accuracy before using it in the experiment.
   工程师在实验中使用之前，先对密封仪器进行了准确性测试。
3. 3. The hermetically-sealed instrument was crucial for maintaining the stability of the chemical reaction.
   这个密封仪器对于保持化学反应的稳定性至关重要。