1 9 8 7 ). ▁Another ▁important ▁step ▁was ▁made ▁by ▁Brian ▁Harris ▁with ▁his ▁" Bi - text ". ▁He ▁has ▁defined ▁the ▁bi - text ▁as ▁" a ▁single ▁text ▁in ▁two ▁dimensions " ▁( 1 9 8 8 ), ▁the ▁source ▁and ▁target ▁texts ▁related ▁by ▁the ▁activity ▁of ▁the ▁transl ator ▁through ▁translation ▁units ▁which ▁made ▁a ▁similar ▁echo es ▁with ▁Sad ler ' s ▁B iling ual ▁Know ledge ▁Bank . ▁And ▁in ▁Harris ' s ▁work ▁he ▁proposed ▁something ▁like ▁T M ▁system ▁without ▁using ▁this ▁name : ▁a ▁database ▁of ▁pa ired ▁transl ations , ▁search able ▁either ▁by ▁individual ▁word , ▁or ▁by ▁" who le ▁translation ▁unit ", ▁in ▁the ▁latter ▁case ▁the ▁search ▁being ▁allowed ▁to ▁retrieve ▁similar ▁rather ▁than ▁identical ▁units . ▁ ▁T M ▁technology ▁only ▁became ▁commer cially ▁available ▁on ▁a ▁wide ▁scale ▁in ▁the ▁late ▁ 1 9 9 0 s , ▁so ▁the ▁efforts ▁made ▁by ▁several ▁engine ers ▁and ▁transl ators . ▁Of ▁note ▁is ▁the ▁first ▁T M ▁tool ▁called ▁Tr ados ▁( SD L ▁Tr ados ▁now ad ays ). ▁In ▁this ▁tool , ▁when ▁opening ▁the ▁source ▁file ▁and ▁applying ▁the ▁translation ▁memory ▁so ▁that ▁any ▁" 1 0 0 % ▁matches " ▁( ident ical ▁matches ) ▁or ▁" f uz zy ▁matches " ▁( similar , ▁but ▁not ▁identical ▁matches ) ▁within ▁the ▁text ▁are ▁instantly ▁extracted ▁and ▁placed ▁within ▁the ▁target ▁file . ▁Then , ▁the ▁" matches " ▁suggested ▁by