jackleg

adj.

没成熟的，不正直的；

Jackleg drill injuries:
YTS-25 Jackleg Hydraulic Drill..
Jackleg Carpentry and the Fall from Freedom to Authority in Writing.
Evaluation of the potential of mining with water-powered jackleg drills
Acoustic assessment of pneumatic and electric jackleg drills used in the mining industry.
The Jackleg Testament, Part One: Jack and Eve Artist Jay Bolotin with his postmodern take on Genesis, the first woodcut motion pictu...
An electromyographic analysis of an ergonomic intervention with the jackleg drill
Virtual reality simulator for training miners to install rock bolts using jackleg drill
Evaluation of a virtual reality simulator developed for training miners to install rock bolts using a Jackleg drill
Evaluation of a Virtual Reality Simulator Developed for Training New Miners to Install Rockbolts Using a Jackleg Drill