Hnub no tus nqi txias dov: feem ntau yog downward trend
Lub teb chaws txias dov nqi tau nqis los ntawm 10-70% hnub no. Qhov kev thov tsis muaj zog tam sim no tsis tau hloov pauv, thiab feem ntau cov lag luam tseem tsim tawm hauv lub xeev tsis txaus ntseeg. Tab sis nyob rau hauv lub neej yav tom ntej, cov hlau molten nyob rau sab khoom yuav qaij ntawm cov xov nrog cov hauv paus zoo dua, uas tej zaum yuav muaj txiaj ntsig zoo rau kev txhim kho cov ntsiab lus ntawm cov ntawv hlau. Nws cia siab tias tus nqi ntawm cov coil txias yuav hloov pauv thiab poob tag kis;
Niaj hnub no tus nqi dov kub: ib qho kev poob qis
Lub teb chaws kub dov cov nqi tau nqis los ntawm 10-50% hnub no. Niaj hnub no cov khoom siv thiab kev thov cov ntaub ntawv qhia tau hais tias cov khoom kub dov tau khaws cia, qhov kev thov ntawm lub rooj tau poob qis, thiab qhov kev xav tau ntawm cov khoom sib txawv yog qhov tseem ceeb. PMI ntawm kev lag luam hauv tsev thiab txawv teb chaws tseem poob qis, thiab kev thov hauv tsev thiab kev xa tawm tsis muaj zog. Nws cia siab tias qhov poob ntawm cov yob kub yuav txuas ntxiv rau tag kis;
Hnub nowelded cev nqe: ruaj khov nrog qee qhov poob
Niaj hnub no, lub teb chaws welded yeeb nkab nqi poob los ntawm 20-30%. Tseem muaj qhov kev cia siab ntawm kev rov ua dua thiab kev poob qis hauv qhov chaw ua lag luam, nrog kev poob qis hauv kev muag khoom, thiab nws xav tias cov nqi yeeb nkab yuav ua haujlwm tsis muaj zog.