{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fcoatingmachine.hateblo.jp%2Fentry%2F2021%2F06%2F09%2F180756\" title=\" The problem of holding shaft of water ring vacuum pump - vacuum pump\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","provider_url":"https://hatena.blog","categories":[],"author_name":"jinzhenrongs","height":"190","blog_title":"vacuum pump","version":"1.0","type":"rich","image_url":null,"title":" The problem of holding shaft of water ring vacuum pump","url":"https://coatingmachine.hateblo.jp/entry/2021/06/09/180756","provider_name":"Hatena Blog","published":"2021-06-09 18:07:56","author_url":"https://blog.hatena.ne.jp/jinzhenrongs/","blog_url":"https://coatingmachine.hateblo.jp/","description":"Another situation of water ring vacuum pump is analyzed. Maybe it's the first time to hear the word about the problem of holding shaft. At first, I don't understand what it means. Is the vacuum pump not working? There are many reasons for this phenomenon. The following is a systematic analysis of th\u2026"}