Modern instruments used to measure wind speed and direction are called anemometers and wind vanes respectively.
(Modern instruments; used; to measure wind speed and direction) (Modern instruments; to measure; wind speed and direction) (Modern instruments used to measure wind speed and direction; are called respectively; anemometers and wind vanes)
Modern instruments Modern instruments Modern instruments used to measure wind speed and direction
used to measure are called respectively
to measure wind speed and direction
wind speed and direction
anemometers and wind vanes