doublejointed

doublestub double double-action black japanned spring hinge Double-thread incision and hanging method double-case vertical centrifugal oil pump double staining dishes for plate-cultures double-pole fastening steel pipe scaffold Double bright pink pansy/blue fantasy. double-potential-step chronoamperometry double element pyroelectric infrared sensor Double Lance Injection for Desulphurization double-slit interference of thermal light