凌敏芝

Braking distance overrun testing device on escalator or moving walk

郭军, 李凡, 陈迪, 2011 .

Power failure rescue method for sync motor driven lift

杨根林, 凌敏芝, 赵碧涛, 2007 .

Device for detecting non-controllability movement of elevator cage

郭军, 李凡, 陈迪, 2011 .