positive-continuous-engagement clutch(PCE clutch)
square-jaw positive-contact clutch
positive electrode [= positive pole]
positive-negative-positive
double-cone clutch (double V clutch)
0-1 symmetric matrix of positive line
(BPG)black positive gel
(moisture content) of the positive electrode
3-terminal positive voltage adjustable regulator
5-HT positive immunoreactive cell
a positive convection term
a positive implicative filter
absorption curve with positive and negative absorb
absorption curve with positive and negative absorbance
accuracy rate of positive result
Acetylcholinesterase (ACHE) positive neurons