An aneroid barometer is an instrument().
A、used to measure the speed of wind
B、in which the pressure of air is measured
C、that tells which dirction a storm is coming from
D、used to measure the height of waves
A、used to measure the speed of wind
B、in which the pressure of air is measured
C、that tells which dirction a storm is coming from
D、used to measure the height of waves
A、adjust the barometer B、indicate any change in the reading of the barometer C、provide a correction for height above sea level D、provide a correction for temperature changes
A、located in an air-conditioned area B、mounted in the passenger compartment C、protected by a collision bulkhead D、permanently mounted
A、used to measure the speed of wind B、in which the pressure of the air is measured C、that tells which direction a storm is coming from D、used to measure the height of waves
A、Thin,metal,air tight cell B、Curved tube containing alcohol C、Column of mercury supported by atmospheric pressure D、Expansion of mercury in a closed tube