Able to explain

Factory where I worked, bought new equipment in Germany - a huge machine, which occupied the whole building. Germans arrived to install. Moreover, not only engineers, even workers (fear, apparently, to entrust the installation of such a complex art Russian peasant). And they were absolutely amazing drill. It not only drilled the wall, but the dust is sucked into a special bag. Our all ran to look at this miracle of technology. But after two or three days a drill disappeared. After much searching and questioning one of the Germans, who best knew Russian, went to the plant manager. And he said:
 - Uh ... uh ... uh ... uh ... ... our Drell ... er ...
Director nodded.
 - What was stolen?
 - No ... uh ... - said the German. - Do not stolen. Uh ... cn #