retention range 中文意思是什麼
retention range
解釋
保持范圍-
In order to compare the retention time ( rt ) and limits of detection of 20 organophosphorous insecticides in different conditions the experiments were carried out using a medium polar capillary column ( db - 1701 ) and a no polar capillary column ( db - 1 ) with two detectors ( gc - fpd and npd ). the rt of 20 organophosphorous insecticides in two different polar capillary columns was a retention qualitative method for 20 organophosphorous insecticides. db - 1701 capillary column coupled with gc - fpd detector was used in the following study, the limits of detection were in range of 5x10 - 11 ~ 2x 10 - 12 g, the linear range was 2x 10 - 9 ~ 1 x 10 - 11g
本研究用兩種檢測器（氮磷檢測器和火焰光度檢測器儀器）和兩種不同極性色譜梓（中極性毛細管色譜柱db - 1701 、非極性毛細管色譜柱db - 1 ）作為研究手段，比較了20種有機磷殺蟲劑在兩種色譜柱（ db - 1 、 db - 1701 ） 、兩種檢測器（ fpd 、 npd ）上的保留時間及最小檢測量，建立了用不同極性色譜柱上有機磷農藥的保留時間可作為有機磷農藥雙柱定性確證的的方法；建立了db - 1701 ， gc - fpd測定蔬菜中20種有機磷殺蟲劑的氣相色譜法，該方法的最小檢測量為5 10 ~ （ - 11 ） 2 10 ~ （ - 12 ） g ，線性范圍在2 10 ~ （ - 9 ） 1 10 ~ （ - 11 ） g時，相關性良好。 -
In low matric potential state, the a & p model can be use to predict water retention characteristics, but in high matric potential state, it cannot get good result. in addition of soil pore connectivity, to correct the a & p model, it can get good result in whole water content range
但在高吸力段a & p模型預測的結果與實際偏差較大，考慮到土壤孔隙實際聯通狀況，修正a & p模型，使供試的四種在整個含水量范圍對土壤水分特徵曲線都得到了較好的擬合。 -
From the reform of the gross economy mechanism in 1981, the reform of state - owned enterprises had taken measures of allowing enterprises to have more autonomy and profit retention, substitution of tax payment for profit delivery, contract with and tenancy enterprises. the key is adjusting the residual claimancy proportions between state and enterprises and expanding the range of enterprises operators " autonomy
從1981年全面經濟體制改革開始，國家對國有企業逐步實行了放權讓利、利改稅、承包經營、租賃經營等措施，其著力點是調整企業與國家之間在企業中各自佔有的剩餘索取權比例，擴大企業經營者的經營自主權。
分享友人