air entrainment

air entrainment读音音标

air entrainment意思解释

释义

加气处理，掺气，加气剂；

英英释义

Air entrainment is the intentional creation of tiny air bubbles in concrete. The bubbles are introduced into the concrete by the addition to the mix of an air entraining agent, a surfactant (surface-active substance, a type of chemical that includes detergents).