.
noo noo-pov thawj ntim tshuab hauv kev lag luam khoom noj khoom haus yog ib qho tseem ceeb thev naus laus zis, khoom noj khoom haus, ib zaug cuam tshuam nrog damp yuav cuam tshuam nrog damp, yuav tsis tsuas cuam tshuam rau nws cov tsw, tab sis lawv kuj yuav ua rau yug me nyuam ntawm cov kab mob phem hauv cov zaub mov,
thiab ua rau cov zaub mov spoilage, cuam tshuam rau cov zaub mov preservation.
txhawm rau tiv thaiv cov khoom hauv cov txheej txheem ntawm kev tsim khoom, kev thauj mus los, kev khaws cia, kev siv thiab kev hloov pauv zoo ntawm kev cuam tshuam nrog damp yuav cuam tshuam nrog damp ntawm kev tiv thaiv ntim
Kev tshawb fawb ntawm cov khoom siv pov thawj noo noo hauv ob qho tib si hauv kev txhawb nqa kev ncig ntawm cov khoom lag luam, lossis tseem ceeb heev hauv kev txo cov peev txheej pov tseg,
nyob rau hauv ib qho kev txiav txim siab kuj tiv thaiv kev txaus siab ntawm cov neeg siv khoom.
