fine adjustment knob – Definition, Pronunciation & Pictures

fine adjustment knob /ˈfaɪn ɐdʒˈʌstmənt ˈnɒb/ n

中文：微调旋钮

Meaning：High-precision focusing device for adjusting the distance between the objective and the object under study.

Found in these illustrated scenes（2）

Binocular microscope Microscope