1. Kev lag luam tshuaj lom neeg: hauv cov twj siv tshuaj lom neeg siv tau los thauj ntau cov ntaub ntawv cov tshuaj lom neeg, cov tshuaj reactants thiab cov khoom siv tsim nyog rau cov tshuaj tiv thaiv.
2. Kev lag luam roj av: nyob rau hauv cov txheej txheem drilling, ua kom zoo thiab petrochemicals, cov twj muaj roj yog siv los thauj cov roj crude, cov roj muaj, petrochemical cov khoom lag luam, thiab lwm yam.
3. Kev lag luam kev lag luam: hauv kev tsim cov khoom lag luam yog siv dav hauv kev thauj mus los ntawm cov kab ua kom txias, xws li cov txias dua, roj av, hluav taws xob, thiab lwm yam.
4. Khoom noj khoom haus thiab dej haus ntawm kev ua zaub mov noj thiab dej haus, cov twj muaj kev lag luam tau siv los thauj cov ntaub ntawv raw, ntxiv thiab cov khoom tiav.
5. Lub zog kev lag luam thiab lub zog kev lag luam: Hauv kev lag luam hluav taws xob ntau thiab cov khoom siv hluav taws xob muaj zog, xws li cov kev thauj hluav taws xob hauv lub zog hauv hnub ci thermal.
6. Kev tiv thaiv ib puag ncig thiab dej kho mob: Hauv kev nqus dej, cov twj siv tau muaj nyob hauv cov dej phwj tuaj, nqus cov chaw nres tsheb thiab cov khoom noj khoom haus; Hauv kev tiv thaiv ib puag ncig, cov twj muaj kev lag luam raug siv rau kev kho roj thiab cov khoom khib nyiab.
7. Kev tsim kho thiab lub nroog Engineering: Hauv cov tuam tsev muaj kev lag luam, chaw tsim khoom siv rau pej xeem, kev siv pej xeem siv tau hauv tshuab hluav taws xob, cua tshuab, cua sov, thiab lwm yam.
8. Lwm cov teb: ntxiv rau, cov twj muaj kev lag luam tseem muaj siv nyob rau lwm qhov kev lag luam xws li tshuaj, metallurgy, thiab papermaking.
