Definition: the force that a liquid or gas produces when it presses against an area Level: C1
高海拔地区的气压较低。
The air ___pressure at high altitudes is lower.
水力发电利用水压来产生电力。
Hydro-electric power generation uses water ___pressure to produce electricity.
罐中气体的压力被密切监控。
The ___pressure of the gas in the tank is monitored closely.
