minimum acquisition flux density

例句：

1. 1. The study of this material is crucial for understanding the behavior of materials at low temperatures.
   研究这种材料的目的是为了理解低温下材料的行为。
2. 2. The researchers found that the minimum acquisition flux density was significantly higher than expected.
   研究人员发现，最小获取通量密度远高于预期。
3. 3. The new sensor has a much lower minimum acquisition flux density than its predecessors.
   新型传感器的最小获取通量密度远低于其前代产品。