Cov khoom ua tau zoo: Nws muaj qhov kub thiab txias ntim ruaj khov, zoo thermal poob siab tsis kam, hnav tsis kam, tshuaj corrosion kuj thiab lwm yam ntxwv. Kev siv tseem ceeb: Feem ntau yog siv rau hauv kev hloov chaw ntawm cov cement rotary kilns, decomposition furnaces, ...
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