A Key and Reliable Circuit的用法和样例：
- Method are a key and a value corresponding to the key.
- In real-time GPS precise point positioning (PPP), real-time and reliable satellite clock bias (SCB) prediction is a key to implement real-time GPS PPP.
- To determine reasonable well test rules through well test design is a key factor to ensure successful well test, complete data and reliable interpretation.
- Miller was a quiet and reliable man.