2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Kamacite, ntxhia muaj cov hlau alloyed nrog 5-7 feem pua nickel los ntawm qhov hnyav thiab pom nyob rau hauv yuav luag txhua lub meteoritesuas muaj nickel-hlau hlau.
Dab tsi yog pob zeb hauv meteorites?
Stony-hlau meteorites muaj ze li qhov sib npaug ntawm cov khoom siv silicate (cov tshuaj uas muaj cov khoom silicon thiab oxygen) thiab hlau (hlau thiab npib tsib xee). Ib pawg ntawm cov pob zeb-hlau meteorites, cov pallasites, muaj yellow-ntsuab olivine crystalsencased nyob rau hauv ci hlau.
Dab tsi yog pob zeb hlau meteorites tsim los ntawm?
Stony-hlau meteorites muaj yuav luag sib npaug ntawm cov hlau-nickel hlau thiab silicate minerals suav nrog cov gemstones muaj nuj nqis thiab semi-precious.
Puas yog feem ntau yog hlau Stoney lossis stony hlau?
Stony hlau meteorite, txhua lub meteorite uas muaj ntau ntawm ob qho khoom siv pob zeb (silicates) thiab nickel-hlau hlau. Xws li cov meteorites, uas feem ntau hu ua pob zeb hlau, yog hom nruab nrab ntawm ob hom ntau dua, pob zeb meteorites thiab hlau meteorites.
Lub pob zeb-hlau meteorite muaj nqis npaum li cas?
Cov nqi hlau meteorite feem ntau yog nyob rau hauv thaj tsam ntawm US$0.50 txog US$5.00 ib gram. Pob zeb meteorites muaj ntau qhov tsawg thiab luv nqi hauv US $ 2.00 txog US $ 20.00 ib gram ntau rau cov khoom siv ntau dua. Nws tsis yog qhov txawv txav rau cov khoom tsis tshua muaj siab tshaj US $ 1,000 ib gram.
Pom zoo:
Tuaj yeem pom muaj mob ntshav qab zib nyob qhov twg?
Pernicious anemia yog hom vitamin B12 anemia. Lub cev xav tau cov vitamin B12 los ua cov qe ntshav liab. Koj tau txais cov vitamin no los ntawm kev noj zaub mov xws li nqaij, nqaij qaib, plhaub, qe, thiab khoom noj siv mis. Leej twg yuav muaj feem yuav mob ntshav qab zib ntau tshaj?
Koj tuaj yeem pom microsporidia nyob qhov twg?
Microsporidian, txhua tus kab mob parasitic fungus ntawm phylum Microsporidia (lub nceeg vaj Fungi), pom nyob rau hauv cells ntawm plab epithelium ntawm kab thiab daim tawv nqaij thiab nqaij ntses. Lawv kuj tshwm sim nyob rau hauv annelids thiab lwm yam invertebrates.
Cov parenchyma tuaj yeem pom nyob qhov twg?
3.1 Parenchyma. Nyias-walled, isodiametric parenchyma hlwb nyob ntawm ntau ntawm lub cortex, thaj chaw nruab nrab ntawm cov epidermis thiab cov ntaub so ntswg, thiab cov pith, thaj tsam mus rau sab hauv cov ntaub so ntswg, ntawm stems. thiab cag.
Tuaj yeem pom cov cushions endocardial nyob qhov twg?
Lub cushions endocardial yog ob thicker thaj chaw uas txhim kho rau hauv phab ntsa (septum) uas faib plaub chav hauv plawv. Lawv kuj tsim cov mitral thiab tricuspid li qub. Cov no yog cov li qub uas cais cov atria (sab saum toj sau cov chav) los ntawm lub ventricles (hauv qab lub twj tso kua mis chambers).
Peb tuaj yeem pom qhov tsis muaj kev xyiv fab nyob qhov twg?
Sessile joyweed (Alternanthera sessilis) yog cov nroj tsuag uas muaj ntau xyoo thoob plaws hauv tropics thiab subtropics. Nws tuaj yeem loj hlob ntawm ntau hom av. Cov nroj tsuag no yog cov nplooj ntoo nrov thiab siv los ua cov nroj tsuag tshuaj ntsuab hauv South East Asia.
