يعرض 841 - 860 نتائج من 1,776 نتيجة بحث عن '(( 19 a decrease ) OR ( 10 (((teer OR peter) decrease) OR (((mean decrease) OR (a decrease)))) ))*', وقت الاستعلام: 0.21s تنقيح النتائج
  1. 841

    Impact of SARS-CoV-2 on Ambient Air Quality in Northwest China (NWC) حسب Zaib, Shah

    منشور في 2021
    "…The PM2.5 failed to comply in SN and XJ; PM10 failed to comply in SN, XJ, and NX with CAAQS Grade II standards (35 µg/m3, 70 µg/m3, annual mean). …"
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  2. 842
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  5. 845

    Pilot-scale petroleum refinery wastewaters treatment systems: performance and microbial communities' analysis حسب Karray, Fatma

    منشور في 2020
    "…Decreasing HRT to 5 and 2.5 days led to a decrease in the efficiency of the process and a decrease in biomass concentration was also observed (<1000 mg/l). …"
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