<p style="box-sizing: border-box; margin: 0px; padding: 0px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "\\5FAE软雅黑", Arial, sans-serif; font-size: 16px;"><span style="box-sizing: border-box;">主要用于粗真空,抽气量大的工艺过程中。它主要用来抽除空气和其他无腐蚀、不溶于水含有少量固体颗粒的气体,以便在密闭容器中形成真空。所吸气体中允许混有少量液体。</span></p>
<p style="box-sizing: border-box; margin: 0px; padding: 0px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "\\5FAE软雅黑", Arial, sans-serif; font-size: 16px;"><span style="box-sizing: border-box;">它被广泛应用于机械、制药、食品、石油化工等行业中。</span></p>