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Kawm txog tin hauv ib feeb
Tin yog ib qho ntawm cov hlau softest nrog zoo malleability tab sis tsis zoo ductility. Tin yog ib qho qis melting point hloov hlau caij nrog me ntsis bluish dawb luster . 1. [ Xwm] Tin yog ib tsev neeg cov pa roj carbon monoxide, nrog tus lej atomic ntawm 50 thiab qhov hnyav atomic ntawm 118.71. Nws allotropes suav nrog wh...Nyeem ntxiv -
Ua raws li lub teeb rau pem hauv ntej Lub 24th Tuam Tshoj International Photoelectric Exposition tau los mus rau ib qho kev ua tiav
Thaum lub Cuaj Hlis 8, 24th Tuam Tshoj International Photoelectric Exposition 2023 qhov kev txiav txim tiav ntawm Shenzhen International Convention thiab Exhibition Center (Bao'an New Hall) ! Sichuan Jingding Technology Co., Ltd. tau caw tuaj rau p...Nyeem ntxiv -
Kawm txog Bismuth
Bismuth yog silvery dawb mus rau liab hlau uas yog nkig thiab yooj yim rau crush. Nws cov khoom siv tshuaj yog qhov ruaj khov. Bismuth muaj nyob rau hauv xwm nyob rau hauv daim ntawv ntawm dawb hlau thiab minerals. 1. [Zoo] Ntshiab bismuth yog cov hlau mos, thaum impure bismuth yog nkig. Nws ruaj khov ntawm chav tsev kub....Nyeem ntxiv
