過(guò)去式：underpropped過(guò)去分詞：underpropped現(xiàn)在分詞：underpropping第三人稱(chēng)單數(shù)：underprops

Movable type underprop robot
Telescopic building beam underprop
A Creating Method of Underprop Project for 3-D Abnormal Space
Scissor column traction drive starting underprop mechanism
The Research of Calculating Cantilever Underprop Structures
A Kind of PLC Control System for Rise-fall Underprop System
Improvement and Evaluation on the Underprop of Wall-mounted Air Conditioner's Packaging Box
BLASTING DEMOLITION OF A FIFTY-THOUSAND-CENTIARE UNDERGROUND OUTSIZE UNDERPROP
Optimized Design of Dongfengll Locomotive Salvation Vehicle Underprop Base on FEM Simulation
The treatment effects in old lacerated canaliculus treated with Nd:YAG laser and underprop