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DUPLICATING human senses is a tricky engineering problem.
Until now, controlling the conduction of heat through solid objects has been a tricky engineering challenge.
There was only one, and it involved tricky engineering, so it was priced at $22,000.
Even at Three Mile Island, where the reactor vessel remained intact, removing the fuel by remote-controlled machinery was a tricky engineering feat.
This would deploy tricky engineering at great altitude to transfer water from the headwaters of the Yangzi to the upper reaches of the Yellow river across the Tibetan plateau.
The first is that the mineral being strip mined on Pandora is called unobtanium, a word "used by engineers since the 1950s to refer to any substance with miraculous properties that would perfectly solve a tricky engineering problem — but doesn't exist".
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This part poses the trickiest engineering challenges and also may draw protests from advocates for Tibetan culture, who have already criticized plans to pipe energy resources out of the region.
It's one of the world's trickiest engineering problems – how to prevent people overheating on underground trains?
Rather slick engineering, that.
But designing targeted imaging agents for MRI requires tricky chemical engineering.
Thousands of centrifuges are needed and the engineering is tricky, but the process is more easily hidden, with reasonable electrical requirements and no heat or gas that can be detected by sensors.This makes it ideal in North Korea, where there are hundreds of miles of tunnels and underground facilities and plenty of uranium mines.
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