二级蒸汽喷射真空泵按需订制图片

p1Src=//y1.yzimgs.com/uploads/387769/20191012-165456417.jpg?watermark/2/text/5Y2X6YCa5b635Yqb56eR5YyW5bel6K6-5aSH5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/750/fill/I0E3QTlBOA==/gravity/SouthEast"

aa