PHILIPPE PSAILA / SCIENCE PHOTO LIBRARY PHILIPPE PSAILA / SCIENCE PHOTO LIBRARY
Wheel loader. Engineer testing the controls in the cabin of a wheel loader. He is using a laptop computer to check the electronic joysticks that operate the steering and move the wheel loader's bucket. This is the largest wheel loader produced in the world in 2004. Photographed at Letourneau Inc., Longview, Texas, USA.
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