OIA Operator Information Area

operator access area

operator control area

operator information area message

operator information area

AC interconnected area power grid

abyssal area

abysmal area

Abutment Area

abundant and coarse sediment area of north Shaanxi

abundant and coarse sediment area

absorption area of root system

absorption area method

absorption area

absolute execution area

ABS AREA BOUNDED STAPLE FABRIC

abrupt changes in the cross-sectional area of a tunnel

abrupt changes in the cross-sectional area of a tu