Ntawm no yog cov tib neeg hais txog kub ntawv khob

Txij li thaum tsim, Uchampak lub hom phiaj los muab cov kev daws teeb meem zoo tshaj plaws rau peb cov neeg siv khoom. Peb tau tsim peb tus kheej R <000000>D chaw tsim khoom thiab tsim khoom. Peb nruj me ntsis ua raws li tus txheej txheem tswj kev ua tau zoo los xyuas kom meej tias peb cov khoom ua tau raws li lossis tshaj peb cov neeg siv khoom xav tau. Tsis tas li ntawd, peb muab kev pab cuam tom qab muag rau cov neeg siv khoom thoob plaws ntiaj teb. Cov neeg siv khoom xav paub ntau ntxiv txog peb cov khoom tshiab kub ntawv khob lossis peb lub tuam txhab, tsuas yog tiv tauj peb.

Khaws rau hauv lub hnab yas huv thiab nqus cov dej noo ntau dhau nrog ob peb daim ntawv phuam, uas tuaj yeem ua rau muaj dej noo. Tom qab ntawd muab lub thawv rau hauv. Lawv kav ntev li peb mus rau tsib hnub los khaws lawv, thiab yog, technically, nws yog txiv hmab txiv ntoo. . . . . . Txawm li cas los xij, tag nrho cov txiv lws suav, suav nrog cov txiv lws suav me me thiab cov txiv lws suav ntawm cov txiv hmab txiv ntoo

Vim li cas cov khob ntawv kub?

Nws tau kwv yees tias kev lag luam ntim thoob ntiaj teb muaj nqis txog $ 424 billion ib xyoos, thiab tus nqi ntawm North America yog li $ 118 billion. Needless hais, kev lag luam ntim khoom loj heev. Interestingly, thaum koj xav txog nws, tib yam yog qhov tseeb pom cov khoom decomposition hauv kev lag luam no, txawm tias nws yog ntawv (36%), hlau (17%), yas (34%) lossis iav (10%).

kub ntawv khob Daim ntawv thov

Chicago thiab Madison. Muaj kev cai lij choj zoo sib xws. Kwv yees li 89 billion lub hnab yas, cov hnab ntim khoom thiab cov ntawv qhwv tau siv hauv Tebchaws Meskas txhua xyoo. S. Raws li American Chemical CommissionIn 2007, 0. 83 billion ntawm cov ntaub ntawv no tau rov qab los, nce li ntawm 25% tshaj 2005. Russell Goldman ntawm ABC Xov Xwm tau pab txhawb rau tsab ntawv ceeb toom.

Nta thiab Kev Siv Rau cov khob ntawv kub

Kuv xav saib yog tias koj ua koj tus kheej wrapping ntawv. Thov qhia cov duab hauv cov lus hauv qab no.

kub ntawv khob Video

Nyob rau hauv xaus

txaus siab rau nws txoj kev cog lus rau cov qauv kev qhia meej hauv kev muab tag nrho cov khoom zoo thiab cov kev pabcuam siab kom ua tiav cov neeg siv khoom txaus siab.Cov khoom lag luam tag nrho lees paub rau National thiab International Standards nrog rau kev lag luam kev lag luam xav tau.