Qhov ob qhov qhab nia pom yog tsim los ntawm ob daim, thiab qhov dav ntawm ob qhov qhab nia pom tau raug kho los ntawm spacers. Nws qhov txiaj ntsig loj tshaj plaws yog tias nws yooj yim dua los kho, tab sis nws qhov kev siv tsis yog siab npaum li ib qho qhab nia pom. Tab sis tam sim no, ob qhov qhab nia pom feem ntau yog siv ntau zaus, vim nws yog qhov tseem ceeb rau kev yooj yim ntawm kev siv phau ntawv.
Yuav ua li cas yog ib tug sib tw saw hniav sib sau ua ke?
Ob chav qhab nia saw hniav muaj ob daim, ib sab laug thiab ib txoj cai. Cov neeg ua haujlwm yuav tsum sib sau ua ke cov saw saws sib xws. Tsis yog txhua daim ntawv sab laug thiab sab xis tuaj yeem sib tshooj zoo kawg nkaus, yog li cov kauj ruam no yuav tsum tau kuaj xyuas phau ntawv kom tiav.
Tom qab lub sawb sib dhos tiav lawm, tus pin yog ces ntaus. Tus pin yog siv rau fixation thiab meej qhov chaw. Nws ua lub luag haujlwm tseem ceeb hauv kev sib txuas ntawm cov khoom siv tshuab.
Tom ntej no, nws tag nrho tso siab rau kev paub txog tus tswv rau rauj.
Qhov no yog cov txheej txheem sib dhos ntawm ob qhov qhab nia saw hniav.
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