100파스칼과 동일한 압력 단위로, 주로 기상학에서 대기압을 측정할 때 사용됨
A unit of pressure equal to 100 pascals, commonly used in meteorology to measure atmospheric pressure.
예문:
"The weather forecast predicts the central pressure of the typhoon will drop to 950 hPa."
"Standard atmospheric pressure at sea level is approximately 1013.25 hPa."
신호의 전력을 높은 수준으로 높이는 데 사용되는 전자 장치로, 주로 위성이나 무선 시스템의 송신에 사용됨
An electronic device used to increase the power of a signal to a high level, typically for transmission in satellite or radio systems.
예문:
"The satellite ground station requires a high-performance HPA to ensure clear signal transmission."
"Engineers are working to improve the thermal efficiency of the new HPA module."