free port
自由港
自由港自由港自由港口
自由端口
自由口
免税港
无税港口
chrome free and formaldehyde free tannage
lead free and cadmium free
ENSO mode and ENSO-like mode
period ratio of torsion mode to translation mode
1150mm free standing last-stage steel blades
1-Diphenyl-2-picrylhydrazyl DPPH free radical
2-D free shear turbulent flows
3-D free curved surface