Maximum allowable concentration of pollutants in atmosphere for protection crops 保護(hù)農(nóng)作物的大氣污染物最高允許濃度
Abstract : the thermogram of s . dysenteriae of fungistatic action w as determined and the growth rate constant at different concentration of medicin e was calculated , and the optimum allowable concentration of the co salt complex abtained 文摘:微量量熱法測定并研究計算了在不同濃度的鈷配合物作用下痢疾桿菌的生長速率常數(shù)和最佳用藥量。
It is proved that the new technology is feasible , but 4 important problems must be solved by test , viz , behavior of iron ion in anode ; influence of iron in electrolyte on current efficiency , cathode quality , and the allowable concentration of iron ion ; the optimal concentration of sulphuric acid in electrolyte ; the optimal method of removing iron ion in electrolyte 但是要進(jìn)行工業(yè)生產(chǎn),必須經(jīng)過試驗研究,解決好4個問題,即陽極中鐵的行為;電解液中的鐵離子對電流效率的影響和陰極析出質(zhì)量的影響,鐵離子的最高允許濃度是多少;電解液中硫酸的最佳濃度是多少;電解廢液中的鐵離子采用什么方法進(jìn)行凈化最經(jīng)濟(jì)。