Yuav ua li cas loj npaum li cas sediment forebay?

Cov txheej txheem:

Yuav ua li cas loj npaum li cas sediment forebay?
Yuav ua li cas loj npaum li cas sediment forebay?
Anonim

Cov av av av yuav tsum loj kom tuav 0.25 ntiv ntawm cov dej ntws ntawm ib daim acre ntawm cov dej ntws tawm, nrog qhov tsawg kawg nkaus ntawm 0.1 ntiv rau ib daim acre impervious.

Yuav ua li cas ua ib lub pob zeb hauv av?

Rau cov kwj dej ib ntus, cov kwj dej (kawg) qhov siab yuav tsum tsis pub tshaj kaum tsib (15) feet. Rau embankments mus txog kaum (10) ko taw nyob rau hauv qhov siab, embankment sab saum toj dav yuav tsum yog yam tsawg kawg nkaus ntawm yim (8) ko taw. Rau embankments ntawm kaum (10) thiab kaum tsib (15) ko taw nyob rau hauv qhov siab, qhov tsawg kawg nkaus sab saum toj dav yuav tsum yog kaum (10) ko taw.

Yuav ua li cas cov sediment forebay ua haujlwm?

Sediment forebays feem ntau yog cov chav nyob hauv online, tsim los kom qeeb dej nag los nag thiab tawm tsam cov av qeeg. Qhov tsawg kawg nkaus, qhov loj me ntawm cov sediment forebay kom tuav 0.1-nti / impervious acre kom pretreat cov dej zoo ntim. … Siv lwm cov nroj tsuag yuav txo cov ntim ntim hauv lub forebay.

Koj ntsuas lub pas dej kaw li cas?

Qhov sib npaug ntawm kev hloov lub pas dej kaw qhov ntim hauv mm hla thaj chaw dej ntws, Vs, rau m3, yog: Vst=(10)(Vs)(A) m3. Hauv S. I. units qhov dej ntws qhov tob, Qb lossis Qa, tuaj yeem suav los ntawm qhov paub txog qhov tseem ceeb rau qhov siab tshaj qhov dej ntws, lub sijhawm ntawm qhov siab, thiab thaj chaw dej ntws, nrog rau qhov sib npaug: Q - 360 (qp tc / A).

Koj ua li cas xam qhov ntim ntawm lub pas dej ruaj khov?

The tsawg kawg nkaus lub pas dej ntim yog sib npaug rau WQV. Mus tas lipas dej ntim=0.42 ac-ft • Yog hais tias muaj ib lub forebay, qhov loj ntawm 10% ntawm WQV, uas yuav suav nrog 0.42 ac-ft ntawm lub pas dej ruaj khov.

Pom zoo:

Nthuav cov khoom
Koj puas tuaj yeem mus ntsib dagestan?
Nyeem ntxiv

Koj puas tuaj yeem mus ntsib dagestan?

Dagestan, officially lub koom pheej ntawm Dagestan yog ib lub koom pheej ntawm Russia nyob rau hauv lub Caspian Hiav txwv, nyob rau hauv lub North Caucasus ntawm Eastern Europe. Nws nyob rau sab qaum teb ntawm Greater Caucasus, thiab yog ib feem ntawm North Caucasian Federal District.

Xab npum suds siv rau dab tsi?
Nyeem ntxiv

Xab npum suds siv rau dab tsi?

A xab npum suds enema yog ib txoj hauv kev kho cem quav. Qee tus neeg kuj siv nws los kho fecal incontinence lossis tshem lawv cov quav ua ntej kev kho mob. Thaum muaj ntau hom enemas, xab npum suds enema tseem yog ib qho ntawm ntau hom, tshwj xeeb tshaj yog rau cem quav.

Puas yog qhov kev xeem thib ob?
Nyeem ntxiv

Puas yog qhov kev xeem thib ob?

Qhov thib ob derivative yuav yog siv los txiav txim siab hauv zos extrema ntawm kev ua haujlwm raws li qee yam xwm txheej. Yog tias qhov kev ua haujlwm muaj qhov tseem ceeb rau qhov twg f′(x)=0 thiab qhov thib ob derivative yog qhov zoo ntawm qhov no, ces f muaj qhov tsawg kawg nkaus hauv zos ntawm no.