indicated device

例句：

1. 1. The new software is designed to indicate the location of a specific item on a map.
   这款新软件旨在指示地图上特定物品的位置。
2. 2. The device is used to indicate the presence of an electrical current.
   该设备用于指示电流的存在。
3. 3. The indicator device was carefully tested for accuracy before being deployed in the field.
   在部署在现场之前，该指示设备经过了仔细的测试以验证其准确性。