posthole

n.

地上所掘的插旗杆或电线用的洞；浅油井；

Posthole
Posthole
Posthole digging apparatus
Posthole digger and cleaning attachment
Power driven posthole boring machine
Rational predictable posthole preparation.
Posthole Testing and Pattern Recognition Revisited: the Moore House, Ballard County, Kentucky
Comparison Study Between Vault Seismometers and Posthole Seismometers
Comparison Study Between Vault Seismometers and a New Posthole Seismometer
Posthole Sensor Performance in the USArray Transportable Array - Results from Testing and Initial Deployments in Alaska and Canada