泥夾車 個泥夾

It is a type of Excavator call:-

Grab Crane/Grabbing Crane /Crane and Grab
It consists of two hinged half-buckets or jaws pivoted to a frame which is suspended by cable from a long jib of an excavator. The grab is used for deep excavations of limited area on all types of soil except rock.

Example please visit :
http://www.alibaba.com/showroom/Grab_Crane.html

2008-12-12 09:50:46 補充：
Sometime, the Grab will mount on the dump truck, this kind of truck is call tipper Grab.

See the sample in the following web site:
http://www.truckcontracthire.co.uk/vehicle-leasing/26-32-tonne-tipper-grabs.htm