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美(mei)國哈希HQ30D手持式溶(rong)(rong)(rong)氧儀(yi)(yi)適用于測定(ding)溶(rong)(rong)(rong)解(jie)在水中(zhong)的氧氣濃度或飽和度。HQ30D便(bian)(bian)攜式溶(rong)(rong)(rong)氧儀(yi)(yi)是哈希公司采用前沿技(ji)術開(kai)發而成,適合(he)于實驗室和野(ye)外測試的 兩款(kuan)便(bian)(bian)攜式儀(yi)(yi)器。