clear mark [= clearing mark]

End-of-Tape Mark (EOT Mark)

tidal bench mark [= tidal mark]

Agricultural Sector

agricultural sector in Taiwan

Agricultural Sector Model

air defense sector

Airspace sector structure optimization

alluvial-pluvial sector

alterable search sector angle

alternative sector

angle of the sector

Anhui sector of the Tan-Lu fault zone

annular sector plate

Annular sector plates

annulus sector domain

apical sector

apparel retailing sector

back course sector