absolute retention volume

accuracy retention

Active stage retention

activity retention capability

actual retention volume

actual solid retention time

acute urinary retention

adhesive retention

adjusted retention time

adjusted retention volume

adsorption and retention

afforestation survival rate and retention rate

air-retention

air-retention capacity

Alkaline phosphatase retention

Alkaline water retention capacity

anti-drought and water-retention technology

Apparent nutrient retention

Apparent retention ratio

apparent retention ratio of nutrition