{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"220 ~ 500 kV substation relay protection signal Detailed and operation guidance","author_name":"AI XIN FA. FENG ZHENG XIE","thumbnail_url":"https://www.ebooknetworking.net/books/751/232/big7512325355.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-7512325355.html\">220 ~ 500 kV substation relay protection signal Detailed and operation guidance</a>","width":400,"height":300}