Video: Yuav ua li cas koj pom qhov inverse ntawm ib tug yeeb nkab?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov Rov qab Qib ntawm a cev yog qib coj los ntawm hauv qab ntawm sab hauv cev raws li qhia hauv qab no. Qib ntawm lub crown ntawm lub cev yog cov Rov qab qib ntxiv rau lub internal txoj kab uas hla ntawm lub cev ntxiv rau cev phab ntsa thickness.
Kuj paub, koj pom qhov invert theem ntawm cov yeeb nkab li cas?
Cov Invert Level ntawm ib lub yeeb nkab yog cov qib muab los ntawm lub hauv qab ntawm lub sab hauv cev raws li qhia hauv qab no. Cov qib ntawm lub crown cev yog cov Invert theem ntxiv rau lub internal txoj kab uas hla ntawm lub cev ntxiv rau cev phab ntsa thickness.
Dab tsi yog qhov invert elevation ntawm cov yeeb nkab? Invert elevation yog qhov siab ntawm cov kav dej phwj tuaj cev thiab ib tug muab lub rooj ntev zaum, feem ntau yog nyob rau sab saum toj ntawm txoj kev los yog hauv pem teb tiav lawm. Cov neeg ua haujlwm ua cov kav dej phwj tuaj cev installation yuav tsum xyuas kom meej tias tag nrho cov kav dej phwj tuaj cev lawv nruab ntsib cov nce invert qhov siab.
Qhov thib ob, yog Invert sab saum toj lossis hauv qab ntawm cov yeeb nkab?
Hauv civil engineering, cov lus invert thiab obvert yog siv nyob rau hauv cov ntsiab lus ntawm cev qhov siab. Kuv sau qhov ntawd invert txhais tau tias: sab hauv hauv qab nce ntawm cev , thiab obvert txhais tau tias: sab hauv saum nce ntawm cev.
Invert txhais li cas hauv cov kav dej?
Lub sij hawm invert feem ntau yog hais txog hauv qab ntawm cov yeeb nkab, phiab, culvert lossis lwm cov kua dej. Cov invert yog feem ntau txheeb xyuas los ntawm kev nce siab hauv qab ntawm cov yeeb nkab.
Pom zoo:
Yuav ua li cas yog qhov tshwm sim uas ib tug poj niam dig muag xim uas yuav ib tug txiv neej uas tsis pom kev zoo yuav muaj xim dig muag me nyuam?
Yog tias tus poj niam uas muaj lub zeem muag zoo li no (heterozygous rau qhov muag tsis pom xim) yuav ib tug txiv neej ib txwm muaj (XY), cov xeeb ceem hauv qab no tuaj yeem xav tau hauv F2 tiam: ntawm cov ntxhais, 50% yog ib txwm muaj thiab 50% yog cov neeg nqa khoom rau cov kab mob; ntawm cov tub, 50% yog xim dig muag thiab 50% yog qhov pom kev zoo
Koj yuav ua li cas ntxuav lub stainless hlau chimney yeeb nkab?
Yuav ua li cas ntxuav Stainless Hlau Flue Pipe Xyuas kom cov hluav taws tawm thiab cov flue txias ua ntej sim ntxuav lub chimney. Nkag mus rau sab saum toj ntawm lub chimney. Txuas lub chimney txhuam rau thawj tus pas nrig txuas ntxiv. Rub lub txhuam thiab tawm ntawm lub qhov qhib qhib. Ci ib lub teeb nyem uas muaj zog hauv lub flue los tshuaj xyuas ob sab ntawm cov khib nyiab pov tseg
Yuav ua li cas koj xam cov cua siab hauv cov yeeb nkab?
Xam qhov poob siab ntawm 100 feet ntawm cov yeeb nkab, vim qhov no yog li cas cov yeeb nkab ntws cov ntaub ntawv nthuav tawm. 135 psi minus 112-psi = 23-psi / 350/100 = 6.57-psi poob rau 100-feet. Raws li 6.57psi tsawg dua 6.75 psi, qhov piv txwv no nyob hauv 'kev ua tau zoo' thaj tsam
Yuav ua li cas koj pom qhov additive inverse ntawm ib tug matrix?
Txhawm rau kom tau txais cov khoom sib txawv ntawm qhov muab cov matrix, peb tsuas yog yuav tsum muab txhua lub ntsiab ntawm matrix nrog -1. Thaum, peb muab txhua lub ntsiab ntawm matrix nrog -1, nws yuav muab sib npaug rau -A. Li no, A + (-A) yuav sib npaug rau 0 qhov twg 0 yog null matrix. Nws txaus siab lub ntsiab txhais ntawm additive inverse
Yuav ua li cas koj pom qhov sib npaug ntawm qhov nqus ntawm qhov nqus?
X = [Fe(SCN)2+] thiab yuav tsum tau txiav txim los ntawm tus qauv nkhaus. Tom qab ntawd koj tuaj yeem xam qhov sib npaug tas li, Keq, siv qhov sib npaug sib npaug. Tus qauv nkhaus yog ib zajlus ntawm Absorbance piv [Fe(SCN)2+] (Daim duab 8.1). Nws tuaj yeem siv los muab peb cov concentration ntawm cov tshuaj thaum muab cov absorbance