variable focus lens vari-focus lens

vari-focus lens variable focus lens

double-antigen sandwich ELISA(DS-ELISA)

liquid phase blocking ELISA(LPB-ELISA)

γ-interferon ELISA γ-IFN ELISA

2 Focus

2D digital focus

2nd-order weak focus

a long focus mirror

Actinic Focus

activity focus

adjustment of focus

aerodynamic focus

alternate solenoid field focus

annular focus

anterior focus

apparent focus

arbitrary order weak focus

area IR focus plane array