区域境界线

physiological cross-sectional area【生理】

area under the concentration versus time curve

the low-tax, tariff-free zone; bonded area; tax-protected zone

relief area

area tegmentalis ventralis【解剖】;ventral tegmental area【解剖】;

estimated area of burning

cross-sectional area of fuel-metering orifice

log pile area, stacking area