函數(shù)模型及其應(yīng)用-資料下載頁
2025-07-18 11:40本頁面
【正文】 m ppm, what39。s the concentration of chlorine after t hours? 如果一開始投入 m ppm 氯，那么 t hours 氯的濃度為多少？ tmey ??2022/8/15 the results to find the concentration that would be needed at 8 am on a similar day to ensure that the chlorine concentration did not fall below (parts per million) before 3 pm. 一開始需要投入多少濃度的氯，才能確保 3pm 前氯的濃度不低于 7?t ??? meppmem ?? ??The concentration of chlorine is 11ppm. 2022/8/15 ? concentration would be needed at 8 am that the concentration did not fall below ppm before 12 noon? 一開始需要投入多少濃度的氯，才能確保12 noon 前氯的濃度不低于 4?t ??? meppmem ?? ??The concentration of chlorine had been placed is 。 2022/8/15 ? two chlorine doses were used , one at 8 am and another at 12 noon, what concentrations would be needed at these times to ensure that the concentration did not fall below ppm before 3 pm? 兩次分別需要投入多少濃度的氯，才能確保 3pm前氯的濃度不低于 4?t ??? emppmem ?? ??3?t ??? meppmem ?? ?? ppmey ?? ??p p mm ???The concentration of chlorine had been placed is at 8am, The concentration of chlorine had been placed is 2ppm at 12 noon。 2022/8/15 ? are the implications of your answers for the effective chlorination of pools at lowest cost? ? It is cheaper to use smaller does more frequently than larger does less often. 2022/8/15 課堂檢測 2022/8/15 總結(jié)： 實際問題 讀懂題目 將問題抽象化 建立合適的函數(shù)模型 解決問題 2022/8/15
電大資料相關(guān)推薦
鄂ICP備17016276號-1