英 [ˌʌndə'rʌn]
美 [ˌʌndə'rʌn]
n.
低于估计的产量；
v.
跑过…下面，从…下面通过；
过去式：underran过去分词：underrun现在分词：underrunning第三人称单数：underruns
Energy-absorbing underrun protection system for a vehicle
Farriery for the hoof with low or underrun heels
A recommended specification for heavy vehicle rear underrun guards.
Analysis by Three Dimensions FEM on Pipeline Underrun the Soft Soil Roadbed
Underrun Heels and Toe-Grab Length as Possible Risk Factors for Catastrophic Musculoskeletal Injuries in Oklahoma Racehorses
A Synthetic Technique of Settlement Control for Shield Underrun the Railroads
Method and apparatus for detecting impending overflow and/or underrun of elasticity buffer
Conceptual Design by TRIZ: An Application to a Rear Underrun Protective Device for Industrial Vehicle
A comparison of simplex and simulated annealing for optimization of a new rear underrun protective device
Using type IV Pearson distribution to calculate the probabilities of underrun and overrun of lists of multiple cases.