Video: Dab tsi yog load kub?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv geology, a loj yog ib tug deposit ntawm metalliferous ore uas sau los yog embedded nyob rau hauv ib tug fissure (los yog tawg) nyob rau hauv ib tug pob zeb tsim los yog ib tug hlab ntsha ntawm ore uas yog deposited los yog embedded ntawm txheej ntawm pob zeb. Qhov loj tshaj kub lod nyob rau hauv lub tebchaws United States yog lub Homestake Lode.
Hauv qhov no, qhov txawv ntawm placer thiab lode kub yog dab tsi?
Feem ntau hais lus, qhov chaw mining yuav sifting los ntawm gravel kom cais cov pieces ntawm kub . Qhov chaw mining yuav ua tau los ntawm ib tug prospector nrog kub pan. Cov txheej txheem ntawm loj , los yog pob zeb nyuaj, mining, ntawm qhov tod tes, yog txheej txheem uas kub yog rho tawm ncaj qha los ntawm loj hauv qab av.
Ib yam li ntawd, qhov txawv ntawm qhov kev thov lode thiab qhov kev thov placer yog dab tsi? Lode Claims cover classic veins los yog loj muaj ib thaj tsam zoo thiab tseem muaj lwm cov pob zeb hauv - qhov chaw bearing muaj nuj nqis mineral deposits. Placer Claims npog tag nrho cov deposits tsis raug rau loj claims.
Khaws qhov no rau hauv kev xav, dab tsi yog load kub?
Lode mining tseem hu ua hard rock mining. Keeb kwm, tag nrho kub yog tso rau hauv a loj los yog cov hlab ntsha uas muaj cov ntxhia hauv pob zeb, xws li cov kub -Txoj kev nplua nuj nrhiav pom nyob hauv roob nyuj. Cov txheej txheem ntawm placer mining yuav tsum sau lub lauj kaub nrog cov crushed ore kom cais cov kub.
Qhov twg kub feem ntau pom?
Nyob hauv South Africa , Witwatersrand Basin sawv cev rau thaj chaw nplua nuj tshaj plaws uas tau pom. Nws kwv yees li 40% ntawm tag nrho cov kub uas tau mined tau tawm ntawm lub Phiab. Xyoo 1970, Sab qab teb Africa cov khoom lag luam suav txog 79% ntawm lub ntiaj teb kub ntau lawm.
Pom zoo:
Qhov kub ntawm qhov hluav taws kub kub li cas?
Feem ntau hom ntoo yuav pib combusting ntawm li 300 degrees Celsius. Cov pa roj hlawv thiab nce qhov kub ntawm cov ntoo mus txog 600 degrees Celsius (1,112 degrees Fahrenheit). Thaum cov ntoo tso tawm tag nrho nws cov gases, nws tawm charcoal thiab tshauv
Thawj qhov kub ntawm cov dej kub yog dab tsi?
Teb: Thaum pib kub dej kub 69 ° C,
Dab tsi yog active load thiab passive load?
Passive load yog ib qho load uas tsuas yog ib qho resistor, capacitor lossis inductor, los yog kev sib xyaw ua ke ntawm lawv.Ib qho khoom siv hluav taws xob yog ib qho load uas suav nrog qee yam uas tam sim no lossis voltage tswj, tshwj xeeb tshaj yog cov khoom siv asemiconductor. Kuv cov qauv tsim hluav taws xob yuav tsum suav tias yog qhov kev sim
Thaum tshav kub kub muaj peev xwm vs tshwj xeeb tshav kub yog dab tsi?
Molar Thaum tshav kub kub muaj peev xwm yog ib qho kev ntsuas ntawm cov cua sov uas tsim nyog los nce qhov kub ntawm ib mole ntawm ib tug ntshiab tshuaj los ntawm ib tug degree K. Tshwj xeeb kub muaj peev xwm yog ib qho kev ntsuas ntawm tus nqi ntawm cov cua sov tsim nyog los nce qhov kub ntawm ib gram ntawm ib tug ntshiab. khoom los ntawm ib degree K
Dab tsi yog Rutherford qhov kev sim ua kub kub?
Rutherford's Gold Foil Experiment tau ua pov thawj tias muaj qhov chaw me me rau cov atoms, uas tom qab ntawd yuav raug hu ua nucleus ntawm lub atom. Ernest Rutherford, Hans Geiger thiab Ernest Marsden tau ua lawv Cov Ntawv Nyiaj Kub Kub los soj ntsuam cov txiaj ntsig ntawm alpha hais txog qhov teeb meem