projectile sampler

例句：

1. 1. The projectile sampler is used to collect samples from the air.
   弹道取样器用于从空气中收集样本。
2. 2. The projectile sampler was developed to help scientists study the Earth's atmosphere.
   弹道取样器被开发出来，以帮助科学家研究地球的大气层。
3. 3. The projectile sampler was used to test the accuracy of the weather forecast.
   弹道取样器被用来测试天气预报的准确性。