projection comparator

例句：

1. 1. The new software allows for easy comparisonof data across different projects.
   这款新软件允许轻松地在不同项目间比较数据。
2. 2. Theengineer used a projection comparator tomeasure the accuracy of his calculations.
   工程师使用投影比较器来测量他的计算的准确性。
3. 3. Theproject manager compared the results of two differentmethods using a projection comparator.
   项目经理使用投影比较器对比了两种不同方法的结果。