| 摘要 |
The present invention relates to a device (110) for collecting material (106) from a floor surface (104) of a water column (102). The device (110) comprises an excavation tool (114), a frame (112) for supporting the excavation tool (114) and at least one support surface (126) on a bottom side (128) of the frame (112) for supporting the device (110) when positioned on the floor surface (104). The orientation of at least one support surface (126) with respect to the frame is adjustable. |
