WRN2-621热电阻，热电偶电流大小 上海临嘉科教仪器有限公司

p1Src=//y1.yzimgs.com/uploads/391770/20171031-49359075.jpg&p2Src=//y1.yzimgs.com/uploads/391770/20171031-45170075.jpg&p3Src=//y1.yzimgs.com/uploads/391770/20171031-04238628.jpg