markern.标记;做记号的工具;做记号的人;记分员
marker arm划行器杆
marker bed标志层
marker off划线工
marker bomb标志炸弹
marker peak标志峰
marker gain标志性成果
marker line标志线
marker shoe划行器铲,指行器
marker lamp识别信号灯,标灯
marker buoy标志浮标