Kaus ntxhw, lossis kaus ntxhw - dawb nrog lub pob tw tawv daj. Cov ntawv kos duab zoo tshaj plaws muaj qhov ntxoov ntxoo no. Ivory tseem tsim nyog rau rooj tog. Txawm tias cov chav ua noj me me hauv chav ua noj tuaj yeem saib zoo nkauj heev yog tias nws tau tinted hauv kaus ntxhw. Phab ntsa lossis nplais ntawm cov xim no ua rau chav sov thiab muaj huab cua, tsis hais nws yog chav nyob lossis chav dej. Cov xim txoj cai tsis yog ib txwm muaj nyob hauv khw, yog li qee zaum koj yuav tsum tau muab cov kaus ntxhw xim los ntawm kev sib xyaw xim.
Nws yog qhov tsim nyog
- - kev daws ntawm poov tshuaj permanganate;
- - paj rwb pas rwb mus tub;
- - dawb tuab ntawv;
- - Xim dawb;
- - xim xim;
- - txhuam.
Cov Lus Qhia
Kauj ruam 1
Rau kaus ntxhw teeb duab ntawv, ua rau lub zog tsis muaj kev daws ntawm poov tshuaj permanganate. Nws yuav tsum yog me ntsis pinkish. Cov poov tshuaj permanganate tuab heev yuav ua rau daim ntawv tsis daj, tab sis xim av. Siv cov ntawv ci nrog paj rwb, moisten daim ntawv nrog dej, tom qab ntawd npog nws nrog ib txheej txawm ntawm poov tshuaj permanganate thiab qhuav. Hauv qhov no, daim ntawv sab nraud los ntawm daim ntawv tseem dawb.
Kauj ruam 2
Yog tias koj muaj cov ntawv thaij duab loj lossis lwm lub thauv uas tuaj yeem ntim ntawv ntawm qhov loj me uas koj xav tau, koj tuaj yeem zas daim ntawv ntawm ob sab. Nws yuav zoo li qhov qub. Ncuav cov tshuaj poov tshuaj permanganate rau hauv ib lub taub ntim thiab poob rau hauv daim ntawv kom cov tshuaj daws nws. Tuav li tsib feeb, tom qab tshem tawm thiab ua kom qhuav. Nws tsis tsim nyog los txo ob peb nplooj ntawv tib lub sijhawm nyob rau hauv lub cuvette, vim tias lawv yuav xim tsis xim.
Kauj ruam 3
Yog tias koj xav tau cov kaus ntxhw pleev xim rau saum npoo me me, yuav cov xim dawb thiab xim daj lossis xim av. Qhov xim xav tau tuaj yeem xaiv hauv tib lub khw muag khoom lag luam uas koj yuav yuav cov xim tha xim. Ncuav cov nqi xim kom raug rau hauv lub thawv sib cais. Ntxiv qee qhov xim thiab do. Yog tias cov xim suits koj, koj tuaj yeem mus ua haujlwm. Yog tias nws tawm los dhau lub teeb, ntxiv qee cov xim ntxiv thiab do dua.
Kauj ruam 4
Rau kev pleev xim phab ntsa thiab lwm qhov chaw loj, nws zoo tshaj plaws mus rau hauv lub khw muag khoom uas muaj cov xim pleev xim sib xyaw. Cov kev teeb tsa zoo li no muaj nyob rau txhua lub khw muag khoom lag luam, kuj yog nyob rau ntau qhov chaw tsim kho loj. Kuj tseem muaj cov qauv xim ntawm cov sawv. Xaiv cov xim dawb nrog lub zas daj me ntsis. Tus neeg muag khoom yuav muab cov xim pleev xim rau koj hauv lub tshuab tshwj xeeb.
Kauj ruam 5
Xim thaj chaw me me ntawm qhov chaw ua ntej. Yog tias koj tau txais kaus ntxhw tiag tiag, pleev xim ntxiv. Yog tias qhov kev siv ntawm lub suab tsis txaus, rov qab mus rau tom khw, thov ntxiv xim thiab sib tov dua.
