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Auto workers worry it takes less labor to build electric cars. Maybe not, some researchers say
By Peter Valdes-Dapena, CNN Business (CNN) — A traditional car engine is a complex wonder of engineering, with pistons moving up and down, springs compressing and decompressing, spinning shafts, opening and closing valves and spinning gears meshing together. That’s not to mention a transmission, connecting the engine to the wheels, that’s a complex machine all
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