low intensity field

例句：

1. 1. In the study of electromagnetic waves, a low-intensity field is essential for understandingtheir propagation.
   在电磁波研究中，低强度场对于理解其传播至关重要。
2. 2.The researchers found that the low-intensity field could be used to detect the presence of certain chemicals in the air.
   研究人员发现，低强度场可以用来检测空气中某些化学物质的存在。
3. 3. The low-intensity field technique has proven to be effective in studying the behavior of materials under different conditions.
   低强度场技术已被证明在研究材料在不同条件下的行为方面非常有效。