dislocation free zone

export processing free zone

Free Zone

Precipitate Free Zone

tariff free zone

tax free zone

clear zone zone

chrome free and formaldehyde free tannage

lead free and cadmium free

the alternative occurrence of fractured zone and non-fractured zone

trade-wind zone [= zone of trade wind]

zone by zone upgoing

Free rider psychology

(Pb)lead-free

．OH free radical

·OH free radical

100m free style

1150mm free standing last-stage steel blades

1-Diphenyl-2-picrylhydrazyl DPPH free radical

2-D free shear turbulent flows