<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.kwa hiyo ni muhimu ili kuhakikisha kuwa hewa entrained katika halisi povu zilizomo katika imara kwa wakati mmoja vidogo sana sare bubbles kwamba kukaa intact na pekee, na wala hivyo kuongeza upenyezaji wa kuweka saruji kati ya voids.  <response>: it is therefore important to ensure that the air entrained into the foamed concrete is contained in stable, very tiny, uniform bubbles that remain intact and isolated, and do not thus increase the permeability of the cement paste between the voids. 