手持式二氧化碳测量仪 GM70 图片

p1Src=//y1.yzimgs.com/uploads_old/431268/2014010314190147_old.jpg&p2Src=//y3.yzimgs.com/uploads/431268/2016328-163711940.png?watermark/2/text/6KW_5a6J5Y2O5ouT5rWL5o6n5oqA5pyv5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/700/fill/I0E3QTlBOA==/gravity/SouthEast"