selector finger
51Colorimeter (chemistry) — For other uses, see Colorimeter. Not to be confused with a calorimeter. A colorimeter is a device used in colorimetry. In scientific fields the word generally refers to the device that measures the absorbance of particular wavelengths of light by …
52parts — Synonyms and related words: AF amplifier, AFC, AFC mixer, CRT, CW oscillator, FM detector, PCV valve, RF amplifier, TR switch, TR unit, ability, accelerator, adder, adjustable propeller, afterburner, aileron, air controls, air scoop, airscrew,… …
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