soil sample barrel

2D sample-sample correlation spectroscopy

Sample-sample correlation

Sample point and sample place

sample-by-sample sum

200L uniform barrel

a tempest in a barrel

aggregate weighing barrel

air pump barrel

Aluminum Barrel

amalgamating barrel

arched barrel roof

autofrettaged gun barrel

automatic barrel welder

Axes of gun barrel

axis of gun barrel

baffle clarification barrel

ball bearing core barrel

bare-barrel drum

barred barrel