rappelling

v.

用绳索下口( rappel的现在分词 )；

Rappelling system
Brake apparatus for use in rappelling
Rappelling Motion with a Descender Applying Belt Friction by a Humanoid Robot
Rappelling Scientists Find Rare Species Hiding for 100+ Years | Plants Are Cool, Too!
Pectoralis major tendon avulsion from rappelling
Locomotion configuration of a robust rappelling robot
RAPPELLING DEVICE FOR PERMITTING PERSONS TO BE RESCUED FROM HIGH BUILDINGS, TOWERS OR THE LIKE
Rappelling: Rope Descending and Ascending Skills for Climbing, Caving, Canyoneering, and Rigging
Self-Rappelling Robot System for Inspection and Reconnaissance in Search and Rescue Applications
Physical fitness and eustress in the adventure activities of rock climbing and rappelling.