Cov txheej txheem:
Video: Koj siv acetone rau dab tsi?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Acetone yog cov kuab tshuaj zoo rau ntau cov yas thiab cov khoom siv hluavtaws. Nws yog siv rau thinning polyester cob, tu cov cuab yeej siv nrog nws, thiab dissolving ob feem epoxies thiab superglue ua ntej lawv harden. Nws yog siv los ua ib qho ntawm cov volatilecomponents ntawm ib co xim thiab varnishes.
Ib yam li ntawd, koj tuaj yeem txhais li cas lub xeev acetone luv luv ntawm kev siv acetone?
Acetone yog ib tug hnyav, uas yog ib tug kua uas candissolve lwm yam tshuaj. Acetone yog feem ntau hu ua asthe hnyav uas tshem cov ntsia thawv polish, tab sis nws kuj muaj nyob rau hauv cov khoom siv da dej thiab tshuaj tsw qab, cov plaub hau thiab cov khoom tu tawv nqaij, thiab cov khoom ua kom pom kev zoo nkauj.
Tsis tas li ntawd, vim li cas peb thiaj siv acetone los ntxuav? Acetone yog ib qho zoo heev nonpolar hnyav thiab yuav so txhua yam roj, roj, pleev, rog, kua, thiab lwm yam. Nws kuj evaporates sai heev yog li nws tseem siv tshem tawm cov dej tawm ntawm cov iav txij li dej hnyav (txawm tias koj pom tsis tau dej) tuaj yeem skew cov txiaj ntsig.
Ib yam li ntawd, koj siv acetone li cas kom nyab xeeb?
Cov kauj ruam
- Muab me me ntawm acetone rau hauv ib lub hnab khib nyiab. Muab cov paj rwb los yog swabs rau hauv ib lub hnab khib nyiab me me, khi lub hnab kom ruaj ntseg, thiab muab tso rau hauv cov khib nyiab.
- Nqa cov acetone seem mus rau qhov chaw pov tseg pov tseg.
- Ntxuav koj txhais tes tom qab siv cov khoom acetone.
- Kaw cov thawv thiab hnav lub qhov ncauj qhov ntswg kom tsis txhob muaj pa taws.
Cov tshuaj dab tsi hauv acetone?
Lub molecular muaj pes tsawg leeg ntawm acetone yog C3H6O thiab cov qauv condensed yog OC (CH3) 2. Qhov no txhais tau tias Acetone yog tsim los ntawm kev sib xyaw ntawm cov ntsiab lus carbon, hydrogen thiab oxygen. Acetone yog ib qho khoom siv nailpolish remover.
Pom zoo:
Dab tsi yog sub account thiab nws siv rau dab tsi?
Ib tug sub account yog ib tug account segregated nested nyob rau hauv ib tug loj account los yog kev sib raug zoo. Cov nyiaj sib cais no yuav muaj cov ntaub ntawv hauv tsev, ntawv xov xwm, thiab lwm yam ntaub ntawv muaj txiaj ntsig lossis muaj cov nyiaj khaws cia hauv kev nyab xeeb nrog lub txhab nyiaj
Dab tsi yog memo thiab nws siv rau dab tsi?
Ib daim ntawv memo (lossis memorandum, lub ntsiab lus "reminder") feem ntau yog siv rau kev sib txuas lus txoj cai, cov txheej txheem, lossis lwm yam kev lag luam hauv lub koom haum
RTM yog dab tsi nws siv rau dab tsi?
Hauv ib txoj haujlwm tsim kho software, Cov Kev Xav Tau Traceability Matrix (RTM) yog ib daim ntawv uas siv los xyuas kom meej tias tag nrho cov kev xav tau txuas nrog rau cov ntaub ntawv xeem. Qhov no yuav pab kom ntseeg tau tias tag nrho cov kev xav tau yuav raug them rau hauv theem kev sim
Dab tsi yog cov khoom siv ncaj qha kev ua haujlwm thiab kev tsim khoom siv nyiaj siv ua haujlwm?
Hauv cov tuam txhab tsim khoom, cov khoom siv nyiaj siv ua haujlwm suav nrog tag nrho cov nqi tsim khoom tshwj tsis yog cov suav nrog cov khoom siv ncaj qha thiab kev ua haujlwm ncaj qha. Cov nqi tsim khoom siv nyiaj siv ua haujlwm yog cov nqi tsim khoom uas yuav tsum tau tshwm sim tab sis tsis tuaj yeem lossis tsis tuaj yeem taug qab ncaj qha rau cov khoom tshwj xeeb tsim
Koj tuaj yeem siv dab tsi es tsis txhob siv chalk rau ntawm daim kab dam?
Alternatives To Chalkboards: Whiteboard Paint (Clear) Koj yuav siv cov cim es tsis txhob siv cov chalk uas yog ib puag ncig zoo dua. Koj qhov chaw tsis tas yuav tsum yog xim dub. Muaj ib tug sau nto nyob rau hauv tej xim koj nyiam. Qhov ntawd yog qhov zoo tshaj plaws ntawm kev xaiv cov xim pob tshab dawb