jinzhenrongs https://blog.hatena.ne.jp/jinzhenrongs/ vacuum pump https://coatingmachine.hateblo.jp/ The deep well pump is a kind of water pump that pumps water from a small deep well. The pump body is partly placed below the water surface in the well, and the power machine is placed at the wellhead. Gubu uses a long transmission uranium to pass from parallel to the well, and drives the screw pump … 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fcoatingmachine.hateblo.jp%2Fentry%2F2020%2F09%2F28%2F180741" title="Working characteristics of deep well 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> Hatena Blog https://hatena.blog 2020-09-28 18:07:41 rich https://coatingmachine.hateblo.jp/entry/2020/09/28/180741 1.0 100%