NS and HR are two English abbreviations, and the specific meaning depends on the context. NS usually stands for network security or navigation system. HR can represent both human resources and heart rate.
These two abbreviations are often used in technology industry or medical industry. In order to avoid ambiguity, we should make clear the meaning of the specific representative according to the context. For example, in the field of network security, NS is often used to refer to the technology of network attack and defense. In the medical field, HR can be used to monitor an individual's heart rate and health.