hard-on

n.

渴望获得，阴茎的勃起；

复数：hard-ons

“The Essence of the Hard On”Hegemonic Masculinity and the Cultural Construction of “Erectile Dysfunction”
Survival of Hard-on-Hard Bearings in Total Hip Arthroplasty: A Systematic Review
Importance of pin geometry on pin-on-plate wear testing of hard-on-hard bearing materials for artificial hip joints.
Hard-on-Hard Total Hip Impingement Causes Extreme Contact Stress Concentrations
High friction moments in large hard-on-hard hip replacement bearings in conditions of poor lubrication.
Predicting the wear of hard-on-hard hip joint prostheses
State of the art in hard-on-hard bearings: how did we get here and what have we achieved?
“The Essence of the Hard On”
Rotary shear valve assembly with hard-on-hard seal surfaces
Static Friction Effects During Hard-on-Hard Contact Tasks and Their Implications for Manipulator DesignCommunication