伸缩臂，配用于射灯或闪灯照明的英文

pantograph

• 伸缩:    stretch out and dr ...
• 臂:    arm
• 配:    join in marriage
• 射:    shoot; fire
• 灯:    lamp; lantern; lig ...
• 或:    nǎi-.
• 闪:    dodge; get out of ...
• 照明:    lighting; illumina ...