Seputembala uno, Junray ndi mabizinesi aku South Korea asayina mgwirizano wamgwirizano. Pansi pa mgwirizanowu, mbali ziwirizi zipanga mgwirizano wofufuza mozama mu ...
Mu February 2022, kuyesa kuyerekezera mtengo kwa "fust particle counter" kunachitika ku China. Ntchitoyi idakonzedwa ndi China Environmental stoichiometry Technical Committee ndi Shanghai Insti ...