The control-by-wire mouth gag pertains to medical device field.

这种线控开口器属于医学器械。

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Roomy enough to hold a family of four, the car was designed to rocket down highways without a driver, since highways of the future would control vehicles by wire.

FORBES: What Ever Happened To The Jet-Powered Car Of The Future? See For Yourself At The Heritage Museum

One day, the company's engineers hope, drive-by-wire could link to the fancy cruise-control, lane-maintenance and vehicle-separation systems that are already being used in some Mercedes models.

ECONOMIST: Drive by wire

In 2004 Mercedes-Benz faced customers complaints that its Sensotronic brake-by-wire system - which used an electrical link to control vehicles' brake pads - sometimes failed.

BBC: Nissan steer-by-wire cars set for showrooms by 2013