Xov Xwm
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Tsib txiaj ntsig ntawm cov iav fwj hauv lub lag luam ntim
Tam sim no, nyob rau hauv lub thawv ntim ntawm kev lag luam hauv tsev, ntim cov ntawv ntim ntawm ntau cov ntaub ntawv, tshwj xeeb tshaj yog yas (qauv: hluavtaws yas, yas ua kua, stabilizer, xim) ntim ntim fwj, ntim ib nrab ntawm cov lag luam qis nyob hauv kev lag luam haus dej. Jiangshan, m ...Nyeem ntxiv -
Hom thiab kev ua tau zoo ntawm cov fwj iav
Lub raj mis iav feem ntau yog siv rau kev ntim cov khoom lag luam hauv cov zaub mov, cawv, dej haus, kws lag luam thiab lwm yam lag luam. Lub khob fwj thiab cov kaus poom muaj cov tshuaj lom neeg ruaj khov thiab tsis kis tau rau sab hauv. Lawv muaj kev nyab xeeb rau siv vim huab cua nruj thiab lub siab ...Nyeem ntxiv -
2020-2025 kev sib tw kev twv thiab kev kwv yees ntawm iav raj ua lag luam
Cov iav fwj thiab lub khob ntim khoom siv yog siv rau hauv kev lag luam cawv thiab dej cawv, nws tuaj yeem tswj tau tshuaj lom neeg kom tsis muaj zog, ua kom tsis muaj zog thiab tsis muaj peev xwm. Tus nqi lag luam ntawm cov fwj iav thiab cov khob ntim hauv 2019 yog US $ 60.91 billion thiab cia siab tias yuav ncav txog Asmeskas $ 77.25 billion ...Nyeem ntxiv
