pit sampler

例句：

1. 1. The engineer used a pit sampler to collect samples from the mine.
   工程师使用坑探取样器从矿井中采集样本。
2. 2. The pit sampler helped us to identify the mineral composition of the rock.
   坑探取样器帮助我们识别了岩石的矿物组成。
3. 3. The pit sampler was used to test the water quality in the mine.
   坑探取样器被用来测试矿井中的水质。