2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Yam qhov taub ob peb millimeters hauv qab ntawm qhov kev daws teeb meem tau kos rau hauv lub pipette. Pipetting yog qhov tseeb tshaj plaws thaum lub pipette tuav vertically.
Kuv yuav ua li cas thiaj paub tias lub micropipette siv li cas?
Raws li txoj cai ntawm tus ntiv tes xoo, ib txwm xaiv lub pipette tsawg tshaj plaws uas muaj peev xwm tuav tau qhov ntim xav tau. Qhov no yog qhov tseem ceeb vim tias qhov tseeb yuav txo qis thaum lub ntim ntim ze rau lub pipette qhov tsawg kawg nkaus muaj peev xwm. Piv txwv li, yog tias koj faib 50 µl siv 5, 000 µl pipette, koj yuav tau txais txiaj ntsig tsis zoo.
Lub micropipette yuav tsum yog li cas?
Thaum micropipettes raug ntsuas, qhov tseeb yog ib txwm hais tias ib feem pua ntawm cov nqi xaiv. Micropipettes yog tsim los ua haujlwm nrog qhov tseeb hauv ob peb feem pua (feem ntau <3%) ntawm tus nqi npaj.
Koj paub li cas yog lub micropipette yog qhov tseeb lossis meej?
Ib pipette yog raug rau qib uas lub ntim xa tuaj yog sib npaug rau qhov ntim tau teev. Precision, ntawm qhov tod tes, muaj kev txhawj xeeb nrog qhov ze ntawm ntau qhov kev ntsuas rau ib leeg, tsis yog rau tus qauv tus nqi, uas yog qhov rov ua dua ntawm cov qauv pipetting.
Yuav ua li cas yog qhov zoo tshaj plaws pipeting txheej txheem kom paub tseeb tseeb?
Siv qauv qauv pipetting Standard (lossis rau pem hauv ntej) hom pipetting yields zoo dua qhov raug thiab precision dua li rov qab hom rau txhua tus tab sisviscous los yog volatile kua. Rov qab hom feem ntau ua rau kev xa khoom ntau dhau.
Pom zoo:
Qhov twg yog debark yog qhov tseeb?
Raws li verbs qhov txawv ntawm debark thiab disembark yog tias debark yog tshem tawm cov khoom ntawm lub dav hlau lossis nkoj lossis debark tuaj yeem yog (tsob hav zoov) tshem cov tawv ntoo ntawm tsob ntoo uas tau poob thaum lub sij hawm disembark tshem tawm ntawm lub nkoj;
Lub iav twg yog lub iav tsav thiab qhov twg yog lub iav tsav?
Daim ntawv yooj yim tshaj plaws yog ob lub iav log nrog cov hniav meshing. Nyob rau hauv tag nrho cov gearbox ib lub iav yuav powered. Qhov no hu ua lub iav tsav thiab lwm lub iavyog hu ua lub iav tsav. Lub iav twg yog lub iav tsav? Gear trains with two gears Qhov yooj yim piv txwv ntawm lub tsheb ciav hlau muaj ob lub zog.
Qhov twg yog qhov tseeb ci los yog ci ntsa iab?
Shinning yog UK Lus Askiv. US version yog shinny. Nws txhais tau tias nce ib yam dab tsi, zoo li txoj hlua lossis ncej. Ci ntsa iab yog qhov uas lub hnub ua rau ib hnub ntshiab. Lub ntsiab lus ntawm shinning yog dab tsi? Shinning txhais tau tias nce ib yam dab tsi los ntawm kev tuav thiab siv ob txhais ceg, tes thiab caj npab rub lub cev.
Qhov twg hauv qab no yog qhov tseeb tag nrho cov fungi yog filamentous?
Teb tiav: A) Fungi muaj cov qauv filamentous hu ua hyphae. Lub hyphae yog cov saw ntev ntawm cov hlwb koom nrog pib ua kom tiav los ntawm kev sib cais sib cais hu ua septa (septate) lossis tsis muaj septa (aseptate). Txawm li cas los xij, ob peb kab mob xws li Poov xab tsis ua hyphae thiab yog ib leeg-celled.
Qhov chaw twg yog qhov zoo dua yog dab tsi yog cov qauv siv lub locator?
ID thiab lub npe tus cwj pwm ua qhov tseem ceeb tshaj lwm qhov chaw yog tias koj lub vev xaib muaj tus ID thiab lub npe tshwj xeeb, ces nws ib txwm xav kom siv lawv hloov XPath vim lawv nrawm dua thiab ntau dua muaj txiaj ntsig. Thaum siv cov chaw nyob, xyuas kom meej tias koj lub chaw nrhiav cov ntsiab lus meej rau cov khoom xav tau.
