Xov Xwm Tuam Txhab
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Vim li cas cov khoom siv tshuaj lom neeg nce nqi thoob plaws lub rooj tsavxwm
Cov neeg koom tes me uas tau them nyiaj rau cov khoom siv tshuaj lom neeg yuav tsum tau pom tsis ntev los no tias kev lag luam tshuaj lom neeg tau ua rau tus nqi nce siab.Dab tsi yog qhov tshwm sim tiag tiag tom qab tus nqi nce?(1) Los ntawm kev thov sab: kev lag luam tshuaj raws li kev lag luam procyclical, tom qab kis kab mob ...Nyeem ntxiv -
Daim ntawv thov teb ntawm ceramic pobzeb rov qab txheej yog tsim sai heev
Txhawm rau ntxiv dag zog rau cov nplaum ntawm cov cement mortar thaum cov pobzeb nteg, tag nrho cov kev lag luam kho kom zoo nkauj tab sis, hmoov zoo, txoj kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis, kev tshawb fawb thiab kev tsim pab pawg, yog lub nraub qaum ntawm cov nplais nplaum ua kom kho kom zoo nkauj kev lag luam tshem tawm ntawm cib, cib, n...Nyeem ntxiv -
Cov ntsiab lus siab yog dab tsi?High khoom aqueous polymer emulsion yuav dhau los ua lub ntsiab ntawm kev ua lag luam
"Cov ntsiab lus ntawm cov dej-raws li nplaum nplaum ncaj qha cuam tshuam rau kev tsim kho vaj tse, lub sij hawm ziab, kev sib koom ua ke pib thiab kev sib koom ua ke ntawm cov dej-raws li nplaum nplaum. Feem ntau 50% ~ 55% Hauv ...Nyeem ntxiv -
Dab tsi yuav tsum yog txheej txheem kev tsim kho ntawm sab nrauv phab ntsa tiling?
Cov phab ntsa sab nrauv yuav tsum raug cua thiab lub hnub, uas ntsuas cov huab cua ntawm cov pos hniav.Yog li ntawd, kev tsim kho phab ntsa sab nrauv yuav tsum nruj me ntsis.Hnub no, peb yuav kawm txog cov txheej txheem thev naus laus zis ntawm kev tsim kho phab ntsa sab nrauv.A, ua ntej peb ntxuav cov phab ntsa ntawm gra ...Nyeem ntxiv