pentalin

例句：

1. 1. The pentalin is a small, portable device that can be used to record information.
   这个小设备可以记录信息，方便携带。
2. 2. The pentalin was invented by a scientist who wanted to improve the efficiency of data collection.
   这个设备的发明者是一位科学家，他想提高数据收集的效率。
3. 3. The pentalin has been used in various fields, including medicine and engineering.
   这个设备在医学和工程领域都有应用。