Hluav taws xob tso cua sov, thiab feem ntau ntawm lawv muaj qhov kub thiab txias thiab tswj lub sijhawm

Hluav taws xob tso cua sov, thiab feem ntau ntawm lawv muaj qhov kub thiab txias thiab tswj lub sijhawm

Nyob rau hauv cov nqe lus ntawm kev lag luam, nws kuj zoo ib yam li cov cuab yeej siv cua sov hauv tsev, siv cov khoom siv tswj thiab siv cov khoom siv zoo, xws li cov wax melting pots, lead melting furnaces, ntau lub qhov cub loj, qhov cub kho cua sov, thiab lwm yam., uas tau siv dav dav thiab siv. Txij xyoo 1940 los txog, vim muaj kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis, cov nqi hluav taws xob pheej yig, kev muaj nyiaj los ntawm kev ua tsov ua rog, thiab cov nyiaj tau los kuj muaj nyob hauv Tebchaws Meskas, nws tau txhawb kev siv cov khoom siv hluav taws xob ntau. Hauv xyoo 1940, qhov kev nthuav dav ntawm cov khoom siv masturbation hauv cov tsev neeg Asmeskas tau mus txog%. Ua ntej kev ywj pheej, Tuam Tshoj cov hluav taws xob cua sov thiab hluav taws xob kev lag luam ib txwm nyob rau hauv lub xeev rov qab heev vim yog imperialist aggression thiab cov tshuaj tiv thaiv. Tsuas yog tom qab kev ywj pheej ua nws txuas ntxiv txhim kho, tshwj xeeb tshaj yog nyob rau xyoo tas los no thaum ntau yam, ntau, thiab kev siv tus nqi ntawm cov khoom tau nkag mus rau lub sijhawm hloov pauv sai. Nyob rau xyoo 1920, tsis muaj ntau yam kev siv thiab kev tsim kho tshiab raws li lub sijhawm dhau los, tab sis lub sijhawm no, txhua yam khoom siv hluav taws xob cua sov tau raug kho dua tshiab thiab txuas ntxiv txhim kho, dhau los ua ib lub sijhawm ntawm kev nce qib hauv keeb kwm ntawm cov khoom siv hluav taws xob cua sov. Hauv kev lag luam ntawm cov khoom siv hluav taws xob hauv tsev, ntau yam khoom siv tau pom zoo nkauj dua, ruaj khov thiab sib sau ua ke, thiab feem ntau ntawm lawv muaj qhov kub thiab txias thiab lub sijhawm tswj, yog li lawv siv tsis raug, ruaj thiab sib sau ua ke. Cov tshuab hluav taws xob kuj tseem muaj qhov kub thiab txias thiab tswj lub sijhawm, yog li qhov ua tau ntawm kev siv tsis raug, qhov kub tsis sib haum, thiab kev puas tsuaj tuaj yeem raug tshem tawm. Zoo li hluav taws xob qhov cub, toasters, pancake txiag, thiab lwm yam, txhua tus muaj kev tswj hwm. Cov ntaub ntawv siv rau kev tsim khoom kuj tseem txhim kho, xws li siv A-qib nickel chromium hlau nrog cov kev txwv zoo, thiab siv magnesium oxide los yog zirconia ua insulators. Cov ntaub ntawv siv rau kev tsim khoom kuj tseem txhim kho, xws li siv A-qib nickel chromium hlau nrog cov kev txwv zoo, thiab siv magnesium oxide los yog zirconia ua insulators.

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