jinzhenrongs https://blog.hatena.ne.jp/jinzhenrongs/ vacuum pump https://coatingmachine.hateblo.jp/ liquid ring vacuum pump suction vent The influence of the position of suction and exhaust hole on pump performance of liquid ring vacuum pump was studied. Through technical renovation project, the concept of critical compression ratio of liquid ring pump and its influence on pump performance are the… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fcoatingmachine.hateblo.jp%2Fentry%2F2020%2F01%2F14%2F174817" title="liquid ring vacuum pump suction vent - 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> Hatena Blog https://hatena.blog 2020-01-14 17:48:17 rich https://coatingmachine.hateblo.jp/entry/2020/01/14/174817 1.0 100%