messages: Dans cet example, le brin conducteur chauffant 16 est constitué de trois fils métalliques 19a, 19b, 19c.
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  would you be so kind as to change this text to english
messages: user
messages: In this example, the heating conductive strand 16 is made up of three metal wires 9 a, 19 b, 19 c.
messages: assistant