jackhammer

n.

手提钻；

1. I talk to my friend and someone repairing the road behind us starts up a jackhammer.
   我和朋友说话，而某人在我们身后正用手提钻在修路。

JACKHAMMER
JACKHAMMER
The Nano-Jackhammer effect in probing near-surface mechanical properties
Mesenteritis secondary to the use of a pneumatic jackhammer.
Jackhammer esophagus: high‐resolution manometry and therapeutic approach using peroral endoscopic myotomy (POEM)
Unusual metacarpophalangeal osteoarthritis in a jackhammer operator
Primary torsion of the omentum in a jackhammer operator: another vibration-related injury.
Jackhammer Esophagus: A Symptomatic Phenotype of Hypertensive Contraction in High Resolution Esophageal Pressure Topography (EPT)
Vibration syndrome. Cutaneous and systemic manifestations in a jackhammer operator.
Control of Respirable Dust and Crystalline Silica from Breaking Concrete with a Jackhammer