The mean vertical wind speed was measured with a Gill cup anemometer and the mean horizontal wind speed was measured with the cup anemometer.
(The mean vertical wind speed; was measured; with a Gill cup anemometer) (the mean horizontal wind speed; was measured; with the cup anemometer)
The mean vertical wind speed the mean horizontal wind speed
was measured was measured
with a Gill cup anemometer
with the cup anemometer