相关题目
The （ ） senses pressure changes and displays the vertical elevation of an object above a given reference point.
The （ ） displays the speed of the airplane through the air by comparing ram air pressure with static air pressure.
The pitot-static instruments operate on the （ ） principle.
All three pitot-static instruments use （ ） while the airspeed indicator alone uses （ ） ．
The airspeed indicator, altimeter, and vertical speed indicator all use static pressure, but only the （ ） uses pitot pressure.
One group of flight instruments operates on the principle of pressure differential to provide the pilot with speed, rate of climb or descent, and altitude, this group is referred to as the （ ） instruments.
The pitot-static system includes three instruments, they are （ ） ．
The static port is used to measure （ ） ．
The instrument connected to the dynamic and static pressure system is called （ ）.
The （ ） is used to measure static air pressure.
