Yuav ua li cas yuav tsum tau sau tseg thaum xaiv cov roj av uas thauj khoom caj npab thauj caj npab?
Cov roj teeb roj yog cov khoom siv tshwj xeeb siv los hloov cov roj crude ntawm cov roj tso tsheb hlau luam, cov tsheb thauj khoom, lossis lwm cov hlab tsheb thauj khoom. Lawv tau tsim los lis cov nyom cov nyom ntawm kev txav cov roj crude {} Kuv xav tau kev nyab xeeb, kev hloov pauv tau zoo.
Thaum khaws cov roj av roj teeb, muaj ob peb yam ua kom nco ntsoov kom ntseeg tau tias lawv ua haujlwm tau zoo thiab muaj kev nyab xeeb thiab muaj kev nyab xeeb.
Ua ntej, tau txais qhov loj me. Lub taub (zoo li 3 {- nti koj tau hais tseg) yuav tsum tau yam teeb meem siab heev thiab nws yuav ua rau cov teeb meem siab.
Tom qab ntawv, xyuas cov ntaub ntawv. Cov roj crude yuav ua rau cov khoom siv tawv, tshwj xeeb nrog cov khoom zoo li cov txiv ntoo los yog sib txawv vascosities. Sab caj npab seem, zoo li ntsaws ruaj ruaj thiab hloov pauv cov pob qij txha, yuav tsum tau tuav yam tsis muaj corroding lossis hnav tawm sai.
Siab thiab kub teeb meem ib yam nkaus. Nco ntsoov tias sab caj npab tuaj yeem tswj hwm qhov siab tshaj plaws thiab ntsuas kub ntawm cov roj koj thauj khoom. Txawm hais tias nws tau khaws cia nyob ib ncig ntawm 35℃ib txwm, qee zaum cov xwm txheej muaj peev xwm loj, yog li nws zoo dua kom muaj kev nyab xeeb.
Cov yam ntxwv kev nyab xeeb tsis yog - sib ceg. Saib rau tej yam xws li tso tawm cov ntawv qhia thaum muaj xwm txheej ceev lossis breakaway couplings. If something goes wrong-like a truck accidentally moving-these can stop spills before they happen. Vapor rov qab teeb tsa tau zoo heev, kom ua kom cov pa taws hauv kev kos.
Xav txog seb nws tsiv li cas. Sab caj npab yuav tsum tau viav vias thiab ncav cuag yooj yim txuas nrog cov tso tsheb hlau luam, tshwj xeeb yog koj thauj tau los ntawm saud. Nws yuav tsum tsis txhob daig lossis tso ntau dhau ntawm nws cov pob qij txha thaum siv.
Tsis txhob hnov qab txij nkawm. Qhov seem uas txav tau ntau yam yuav tsum tau yooj yim kom tau txais rau cov tshev thiab kho. Yooj yim nkag tuaj yeem txuag sijhawm thiab tiv thaiv kom tsis txhob tshwm sim tom qab.
Thaum kawg, nco ntsoov tias nws haum rau koj lub teeb. Qhov twg koj nruab nws yuav tsum cia truck ua si zoo, thiab yuav tsum muaj chaw txaus nyob ib ncig ntawm nws rau cov neeg ua haujlwm ua haujlwm tsis muaj teeb meem.
Tag nrho cov hauv txhua qhov, nws yog hais txog txuam rau ntawm txhais caj npab rau koj cov kev xav tau tshwj xeeb}, roj hom, yuav tsum ua kom nws tau ua zaum kawg nrog kev xaiv tsa.
