{"type":"rich","version":"1.0","title":"振幅调制电路","provider_name":"Coggle","provider_url":"https://coggle.it","thumbnail_url":"https://static.coggle.it/diagram/Zz9NW3H5wJ7y8kQf/thumbnail","width":1920,"height":1200,"html":"<iframe width=\"1920\" height=\"1200\" src=\"https://embed.coggle.it/diagram/673f4d5b71f9c09ef2f2441f\" frameborder=\"0\" allowfullscreen></iframe>"}