n.研发人员，研究人员（researcher的复数形式）
In order to track a user's hand, the researchers use control sticks from Nintendo's popular Wii gaming system that are mounted above the hologram display area. 研发人员把任天堂游戏系统的控制杆安装在全息像放射区上方用来追踪用户的手的轨迹。
