spot scan

例句：

1. 1. 扫描
   动作
2. 2. 斑点扫描
   技术
3. 3.现场调查
   方法
4. 1.The engineer performed a spot scan on the circuit board to identify any defects.
   工程师对电路板进行了扫描，以识别任何缺陷。
5. 2.During the spot scan, the technician noticed a small ink spot on the document.
   在扫描过程中，技术人员注意到文件上有一个小墨点。
6. 3. The spot scan revealed that the product was not as advertised.
   斑点扫描显示产品并未如广告所宣传的那样。