{"type":"rich","version":"1.0","title":"材料力學","provider_name":"Coggle","provider_url":"https://coggle.it","thumbnail_url":"https://static.coggle.it/diagram/XHsu8X9tHQRZWB99/thumbnail","width":1920,"height":1200,"html":"<iframe width=\"1920\" height=\"1200\" src=\"https://embed.coggle.it/diagram/5c7b2ef17f6d1d0459581f7d\" frameborder=\"0\" allowfullscreen></iframe>"}