tourmaline oscillator

例句：

1. 1. The tourmaline oscillator is a deviceused to measure the electrical properties of minerals.
   绿宝石振荡器是一种用于测量矿物电性质的装置。
2. 2. In mineral exploration, thetourmaline oscillator is oftenused to detect the presence of certain minerals.
   在矿物勘探中，绿宝石振荡器通常用于检测某些矿物的存在。
3. 3. Thetourmaline oscillator was developedby a team of scientists to improve theaccuracy of mineral analysis.
   绿宝石振荡器是由一支科学家团队开发出来的，以提高矿物分析的准确性。