悬挂式电钻
suspended electric drilling machine
按钮式电话拔号盘
button type telephone dial
电铃按钮
bell push-button
bell button
electric bell push button
push button for bell
bell push
bellbutton
KBK柔性组合式悬挂起重机
KBK flexible composite underslung crane
车辆用悬挂式缓冲器
suspension shock absorber for vehicles
电悬式陀螺仪
electrically suspended gyroscope
回转投放式悬挂装置
rotary dropping suspension equipment