The height reached by the fluid in an accurate thermometer is a valid and appropriate measurement of air temperature.
(The height; reached; by the fluid; L:in an accurate thermometer) (The height reached by the fluid in an accurate thermometer; is; a valid and appropriate measurement of air temperature)
The height The height reached by the fluid in an accurate thermometer
reached is
by the fluid L:in an accurate thermometer
a valid and appropriate measurement of air temperature