Thaum nace siv tau?

Cov txheej txheem:

Thaum nace siv tau?
Thaum nace siv tau?

Video: Thaum nace siv tau?

Video: Thaum nace siv tau?
Video: khawv koob tua plab hlauv thiab plab txiav siv tau zoo heev nawb10/05/2022 2024, Kaum ib hlis
Anonim

NACE tau tshaj tawm thawj tus qauv hauv xyoo 1975. Nws tsuas yog siv rau raj, khoom siv, thiab cov chaw ua haujlwm uas H2S tam sim no.

Vim li cas NACE thiaj xav tau?

NACE MR0175 yog lub npe: Petroleum thiab Natural Gas Industries - Cov khoom siv rau hauv H2S-muaj ib puag ncig hauv kev tsim roj thiab roj. Nws tau raug tshaj tawm raws li lus pom zoo ntawm qhov pib txwv ntawm H2S saum toj no uas kev ceev faj tiv thaiv ib puag ncig kev tawg yog suav tias tsim nyog

NACE pom zoo dab tsi?

A NACE MR0175 cov khoom ua raws (qee zaum tsis raug hu ua NACE cov khoom lossis NACE piping) yog cov khoom ua tau raws li txhua qhov kev xav tau ntawm NACE MR0175 thiab tuaj yeem siv hauv H 2S ib puag ncig hauv qhov txwv tsis pub dhau tus qauv.

NACE MR0103 yog dab tsi?

MR0103 xav kom welds hauv P-No. 1 cov ntaub ntawv carbon steelyuav tsum ua raws li txoj hauv kev tau teev tseg hauv NACE Standard RP0472 "Txoj Kev thiab Kev Tswj Xyuas Kom Tiv Thaiv Hauv Kev Pabcuam Ib Cheeb Tsam ntawm Carbon Steel Weldments hauv Corrosive Petroleum Refining Environments"16.

NACE tus qauv rau H2S kev pabcuam yog dab tsi?

NACE cov qauv uas cuam tshuam rau H2S ib nrab siab ntawm 0.05 phaus ib square inch kiag li (psia) feem ntau hais txog kev ntxhov siab tawg thiab kev ntxhov siab corrosion, thaum MMS txhais ntawm " H2S tam sim no "hais txog tib neeg kev nyab xeeb thiab tiv thaiv ib puag ncig rau H2S qhov sib npaug los yog tshaj 20 …

Pom zoo:

Thaum twg siv tau lossis khwv tau?

Thaum twg siv tau lossis khwv tau?

qauv sau ntawv: khwv tau lossis khwv tau? Hauv kev siv niaj hnub no qhov kev lees paub tsuas yog tau txais hauv txhua hom lus Askiv, txawm tias koj hais tias "tau txais". Rau cov neeg Amelikas, tau siv los kawm, hnov qab thiab ua npau suav raws li lawv txoj kev xaiv, qhov no me ntsis conumdrum yeej tsis muaj teeb meem.

Thaum twg siv cov khoom siv tshem tawm tau?

Thaum twg siv cov khoom siv tshem tawm tau?

Cov khoom siv kho hniav tshem tau tau nquag siv rau ib tus hniav rotations, tab sis lawv tsis haum rau kev kho ntau yam kev sib hloov. Lawv kuj tsis zoo rau lub cev txav, uas yuav tsum tau muaj zog ntau dua. Lawv feem ntau siv rau kev kho me me malocclusion .

Vim li cas cov neeg siv khoom thiab cov khoom siv tau siv hauv c ++?

Vim li cas cov neeg siv khoom thiab cov khoom siv tau siv hauv c ++?

Lub hom phiaj ntawm kev siv getters thiab setters yog txhawm rau zais cov ntaub ntawv khaws cia thiab rov qab li casTxoj kev no, yog tias koj hloov tus cwj pwm, koj tsis tas yuav hloov tus lej. nyob rau hauv ib txhiab qhov chaw. Tab sis, yog tias koj tsis tas yuav hloov qhov kev siv, koj tau ua koj cov cai ntau dua thiab tau txais me ntsis los ntawm kev ua li ntawd .

Thaum twg yog qhov kev xav tau siv tau?

Thaum twg yog qhov kev xav tau siv tau?

Nrog qhov muaj peev xwm theoretical, koj tsis tau ua qhov kev sim (piv txwv li yob tuag lossis ua qhov kev tshawb fawb). Hloov chaw, koj siv koj qhov kev paub txog qhov xwm txheej, qee qhov laj thawj, thiab / lossis cov qauv paub los xam qhov tshwm sim ntawm qhov tshwm sim .

Thaum twg siv tau lossis tau txais?

Thaum twg siv tau lossis tau txais?

Get yog daim ntawv tense tam sim no ntawm cov lus qhia. Kau yog daim ntawv dhau los nrog rau ib qho ntawm ob qho kev hloov pauv rau yav dhau los koom nrog. Lwm txoj hauv kev rau kev koom nrog yav dhau los tau txais, uas feem ntau nyiam hauv Tebchaws Meskas .