| 摘要 |
Soil sampler comprising a sampling tube having a receiving space for receiving the soil sample to be taken, the receiving space being limited in radial direction by a wall, being open in distal direction for permitting soil to enter in it and in proximal direction being limited by a transverse wall, having line means for supplying and discharging fluid to the receiving space and with means for closing off the line means, a free plug or piston being placed in the receiving space closely fitting in there and moveable between the transverse wall and the distal area of the sampling tube and the transverse wall and the stopper or piston defining a sealed chamber for fluid when the stopper or piston is situated at a distance from the transverse wall.
|
