名词
中文翻译：井下取样器
同义词：
['downhole tool', 'downhole probe', 'downhole tester']
例句：
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1. The downhole sampler was used to collect samples from the deep underground.
使用井下取样器从地下深处采集样本。
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2. The downhole sampler helped us to understand the geological structure of the area.
井下取样器帮助我们了解该地区的地质结构。
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3. The downhole sampler is a crucial tool for oil exploration.
井下取样器是石油勘探的关键工具。