ZR-1620 yeej lub npe ntawm "precision particle counter"!
Thaum Lub Ob Hlis Ntuj xyoo 2022, qhov kev ntsuam xyuas tus nqi sib piv ntawm "dust particle counter" tau ua nyob rau hauv Suav teb. Qhov haujlwm no tau tsim los ntawm Tuam Tshoj Environmental stoichiometry Technical Committee thiab Shanghai Insti ...