Muaj ob hom kev qhia ncaj qha rau lub khw muag khoom: ib qho yog ib hom kua roj ntsha, uas yog hom kab mob uas ncaj qha thaum npaj khoom, thiab siv ncaj qha; lwm tus yog "binary curing". "Cov duab ci ntsa iab yuav tsum tau muab tso ua ntej siv, uas yog, tus cwj pwm tsis zoo ua thiab ua rau cov duab ci ntsa iab, thiab ces tag nrho qis los ntawm sab sauv, sab qab, sab laug thiab sab sab, uas yog, qhov kev npaj tiav Cov kua nplaum yuav tsum ua kom tiav tsawg kawg yog ob xuab moos ua ntej siv ua ntej.Thaum txoj kev zoo tshaj yog muab cov kua nplaum rau hnub ua hauj lwm yav dhau los ua ntej yuav ua hauj lwm, thiab siv nws hnub tom qab. 2 teev, yog li ntawd lub npaus nyob rau hauv lub glue disappears ua ntej siv, lwm yam yuav muaj kev npaj txhij txog kev xwm txheej zoo.
