يعرض 441 - 460 نتائج من 578 نتيجة بحث عن '(( 25 10 decrease ) OR ( 10 ((steer decrease) OR (((nn decrease) OR (mean decrease)))) ))*', وقت الاستعلام: 0.22s تنقيح النتائج
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    Combined effects of treated domestic wastewater, fly ash, and calcium nitrite toward concrete sustainability حسب Abushanab, Abdelrahman

    منشور في 2021
    "…It was also shown that the addition of FA significantly decreased the chloride permeability of TWW concrete by 55%-71%. …"
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    Changes in air quality during the first-level response to the COVID-19 pandemic in Shanghai Municipality, China حسب Bai, Yang

    منشور في 2020
    "…The results showed that air quality improved significantly During-FLR compared with Pre-FLR, with the concentrations of PM2.5, PM10, SO2, NO2, and CO all decreasing significantly. …"
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