聚光镜调节钮
/kəndˈɛnsəɹ ɐdʒˈʌstmənt ˈnɒb/
n
English: condenser adjustment knob · 聚光镜调节钮
English · condenser adjustment knobEspañol · tornillo de ajuste del condensadorFrançais · vis de réglage du condenseur
释义：Screw that centers the condenser’s light beam in the field of vision by moving it along a horizontal plane.