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পটুয়াখালী সদর, বাউফল, দুমকি, দশমিনা, কলাপাড়া, মির্জাগঞ্জ, গলাচিপা ও রাঙ্গাবালী (৮টি)প্রাক্কলিত ব্যয় : ১,১৬,০৭৫.৬৫ লক্ষ টাকা অন-লাইনভিত্
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Right away insert the hydrometer gradually and thoroughly. Read the hydrometer (leading with the meniscus) at exactly 40 seconds right after stirring was stopped or perhaps the cylinder was returned to your bench.Soil microbiology labs are Specifically critical for tasks that call for extensive-phrase soil stability and sustainability.: Cation exch