2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
2. Qhov twg hauv qab no muaj tsawg dua crystallinity? Kev piav qhia: Nws yog qhov tseeb tias, hlau thiab npib tsib xee ua cov hlau muaj ib daim ntawv crystalline, whereas high density polyethylene (HDPE) thiab low-density ethylene (LDPE) yog ib chav kawm ntawm polymers.
Qhov twg hauv qab no yog cov qauv tsis-crystalline?
iav yog ib qho amorphous lossis tsis yog crystalline khoom. - Qhov no yog vim hais tias thaum iav ua, cov khoom uas feem ntau muaj silica yog sai txias los ntawm nws cov kua lub xeev tab sis nws tsis solidify thaum nws kub poob qis dua nws melting point. Yog li, iav tuaj yeem raug xa mus ua 'supercooled' kua.
Qhov twg hauv qab no muaj HCP siv lead ua qauv?
Cov hlau uas yog ib feem ntawm HCP siv lead ua yog Zinc, Magnesium, thiab Cadmium. Thaum cov hlau uas yog ib feem ntawm CCP yog, tooj liab, nyiaj, thiab kub, uas yog cov hlau npib. Li no, magnesium, Mg yog hlau uas muaj HCP qauv, yog li kev xaiv B yog qhov tseeb.
thawj kauj ruam koom nrog hauv txheej txheem ntawm kev npaj cov qauv ntawm cov khoom siv yog dab tsi?
Kev xaiv. Xaiv tus qauv kuaj tus neeg sawv cev kom ua tus yam ntxwv zoo ntawm microstructure lossis cov yam ntxwv ntawm kev txaus siab yog thawj kauj ruam tseem ceeb heev. … Kev faib tawm. Cov qauv kuaj tau ua tib zoo muab cais kom tsis txhob hloov pauv lossis rhuav tshem cov qauv ntawm cov ntaub ntawv. …
Qhov twg hauv qab no yog daim ntawv cog lus thib ob ntawm cov thermoplastics?
Yogntawm cov hauv qab no yog ib qho kev sib cog lus thib ob ntawm cov thermoplastics? Nqe lus piav qhia: Thermoplastics muaj ib qho kev sib txuas ntawm '2-degree' daim ntawv cog lus thib ob.
Pom zoo:
Qhov twg hauv qab no yog qhov zoo dua ntawm kev hla dhau?
Nws nce genetic ntau haiv neeg, yog li txo qhov tshwm sim ntawm tus neeg raug tus kab mob lossis caj ces txawv txav. Outcrossing yog tam sim no tus qauv ntawm cov hom phiaj tshaj plaws tsiaj yug me nyuam. Tus neeg yug me nyuam tau npaj siab tshem tawm qhov zoo los ntawm kev siv "
Qhov twg hauv qab no yog qhov ua rau qaug dab peg hauv cov neeg laus?
Qhov feem ntau ua rau qaug dab peg yog mob vwm. Tab sis tsis yog txhua tus neeg uas muaj qaug dab peg muaj mob vwm. Qee zaum qaug dab peg yuav tshwm sim los yog tshwm sim los ntawm: kub taub hau, uas tuaj yeem cuam tshuam nrog kev kis kab mob xws li mob meningitis.
Qhov twg ntawm cov haujlwm hauv qab no yog qhov ua haujlwm tsis muaj ntaub ntawv?
printf thiab scanf yog cov piv txwv rau formatted input thiab output functions thiab getch, getche, getchar, gets, puts, putchar thiab lwm yam yog cov piv txwv ntawm unformatted input output functions. Tus qauv input-output header ntaub ntawv, npe hu ua stdio.
Qhov twg hauv qab no yog lub hauv paus tsis muaj zog?
Benzenamine yog lub hauv paus tsis muaj zog tshaj plaws ntawm cov hauv qab no txij li thaum lub delocalisation ntawm ib leeg ib khub ntawm electrons nyob rau hauv nws yog tsis tau vim hais tias cov electron ceev ntawm lub molecule yog haum tsawg thiab lub compound ua raws li lub hauv paus tsis muaj zog nyob rau hauv lub xub ntiag ntawm cov acid.
Puas muaj qhov ntom ntom tsawg dua hauv lub tshuab hluav taws xob?
huab cua sov muaj qhov qis dua li cua txias, yog li huab cua sov nce hauv huab cua txias dua, zoo ib yam li cua kub balloons. Puas convection cell muaj tsawg dua? huab cua sov muaj qhov qis dua li cua txias, yog li huab cua sov nce hauv huab cua txias dua, zoo ib yam li cua kub balloons.
