... B,i„'4»,|«, ' 2 5 3 Hinh 1: Quan he ieng suat biin dgng ciia cdc mdu nen no hong tif do sau thdi gian 6 ngdy 0 dd thi hinh 1 thi hifn quan hf flng suat bien dang cfla cdc ... < 1—1— • W-flWl ^ '= = Hinh 2 : Quan he ung suat bien dgng ciia cdc mdu nen na hong tic do sau thai gian 15 ngdy Hinh 2 the hien quan he ling suat bien dang cua cac mau nen ... ,„„. ^ -;-'.,«, ' /finA 3: Quan h$ ung suat biin dgng ciia cdc mdu nen na hong tif do sau thai gian 30 ngdy Hinh 3 thi hifn quan hf flng suit biln djng cfla cdc mlu...