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Grobtrieb m
health.	coarse-tuning screw
life.sc.	coarse adjustment; coarse motion
microsc.	coarse adjustment knob
opt.	coarse adjustment (drive); coarse focus control; coarse focussing control; coarse focus knob; coarse adjustment head; coarse focussing adjustment (mechanism); rack-and-pinion coarse adjustment

Grobtrieb: 2 phrases in 1 subject

Optics branch of physics

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