Porosity yog qhov ntim ntawm qhov pores hauv cov khoom. Cov pores no tuaj yeem nyob ntawm nws qhov chaw lossis hauv nws cov qauv sab hauvPorosity yog txuam nrog qhov ntom ntawm cov khoom, thiab nrog rau qhov xwm ntawm nws cov tebchaw thiab lub hav zoov ntawm qhov khoob ntawm lawv.
piv txwv ntawm porosity yog dab tsi?
Porosity txhais tau tias yog tag nrho ntawm qhov me me uas dej los yog huab cua tuaj yeem nkag mus. Ib qho piv txwv ntawm porosity yog qhov zoo ntawm daim txhuam cev. Qhov piv, feem ntau qhia raws li feem pua, ntawm qhov ntim ntawm cov khoom siv lub qhov hws, xws li hauv pob zeb, rau nws qhov ntim tag nrho.
Dab tsi yog qhov chaw ntawm porosity?
Porosity yog tshwm sim los ntawm nqus nitrogen, oxygen thiab hydrogen nyob rau hauv lub pas dej molten welduas yog tom qab ntawd tso tawm ntawm solidification kom nkag mus rau hauv cov hlau weld. Nitrogen thiab oxygen absorption nyob rau hauv lub vuam pas dej ua ke feem ntau yog los ntawm cov pa phem shielding.
Dab tsi yog qhov porosity ntawm pob zeb feem ntau?
Rau feem ntau pob zeb, porosity txawv ntawm tsawg dua 1% txog 40%.
Qhov chaw twg muaj qhov porosity siab tshaj?
Clay is the most porous sediment but is the tsawg permeable. Av nplaum feem ntau ua raws li dej ntws, cuam tshuam cov dej ntws. Pob zeb thiab xuab zeb yog ob qho tib si ntxeem tau thiab permeable, ua rau lawv zoo aquifer cov ntaub ntawv. Pob zeb muaj qhov permeability siab tshaj plaws.
