查询词典 optimum solution

The optimum extraction conditions were summed up as follows through orthogonal test: 60 % methanol solution as solvent, lixiviating temperature at 60 ℃ and 40 min lixiviating time, the ratio of raw materials to liquid as 1∶40, and lixiviating twice.

正交试验表明，采用60 %甲醇溶液作为溶剂，最佳提取条件为浸提温度60 ℃，浸提时间40 min，料液比为1∶40，浸提2次。

This paper mainly studies the synthesis of 2-Isopropyl-5-Methyl-2-Hexenal from the optimum reaction conditions of from self aldol condensation of Isovaleraldehy,with NaOH solution as the catalyst of the condensation.

本文以NaOH水溶液为催化剂，探讨了异戊醛Aldol缩合制备可可醛(2异丙基5甲基2己烯醛)的最佳反应条件：反应温度50℃、反应时间9h、催化剂NaOH水溶液的浓度2mol.L1、OH-/异戊醛为1/1，主产物可可醛的产率为92.2%。

The optimum conditions were obtained: the amounts of NaOH solution,quaternary ammonium and benzyl chloride are respectively 16 mL,0.4 g and 15 mL; the reaction temperature and time are 120 ℃ and 3 h.

在NaOH溶液用量16 mL，反应温度120 ℃，季铵盐用量0.4 g，反应时间3 h，氯化苄用量15 mL的条件下，竹纤维的接枝率达143.68 %。

Therefore,it is recommended that the optimum solid solution for cold-drawn billet is follows:(1 150±10)℃×20 min,W.C.and for cold-drawn bar:(1 080±10)℃×20 min W.C..

推荐冷拉坯和冷拉材的优化固溶工艺分别是(1 150±10)℃×20 min，W.C。和(1 080±10)℃×20 min，W.C。。

The optimum condition for separating and purifying SAM was using the solution at pH of 5.0 containing 3.0 g SAM per liter at the flow velocity of 6 L/h through the ion-exchange column (φ50 mm×1500 mm)filled with D152 resin. Impurities were removed first by eluting the column with double-distilled water and acetic acid, and then with 9 L to 15 L of sulfuric acid of 50 mmol/L concentration at the flow velocity of 6 L/h.

论文对SAM的性质、药理作用以及当前国际上关于SAM的研究进展进行了较为详尽的综述，并在此基础上确立了研究内容，取得了如下成果： 1利用本实验室构建的基因工程菌JM71发酵生产S-腺苷-L-蛋氨酸，在50 L发酵罐中发酵6天后，SAM终产量达到6 g/L发酵液。

The optimum conditions are as follows:with 70% ethanol as eluant, working solution pH 6, and series selecting AB-8 resin column for purification. Then, reasonable yield and high product purity can be obtained.

实验结果表明，洗脱剂乙醇的体积分数为70%、上样液pH值为6时，采用AB-8大孔吸附树脂串联柱对山楂总三萜酸进行纯化效果最优，产品的纯度较高。

In synthesizing process, the optimum quanta of hydrogen peroxide solution and glacial acetic acid which affect epoxide number were determined.

对合成过程中影响环氧值的两个重要条件：即双氧水和冰醋酸的用量做了大量实验，确定了最佳条件。

According the known structure of MELs and the composition of broth, the separate and purify process of MELs was studied with silica-gel chromatography and the optimum conditions were: silica gel particle size 200 mesh, washing solution chloroform-acetone mixture (7: 3 for MEL-A, 6: 4 for MEL-B), washing rate 0.25ml/min, washing amount 400ml solvent/g MEL.

1根据已知生物表面活性剂MEL的结构特点和发酵液组成，在提取得到MEL粗制品的基础上，采用硅胶色谱分离技术，确定了MEL的最佳分离纯化条件：硅胶粒径200目，洗脱剂采用氯仿-丙酮混合溶剂，洗脱剂配比为7∶3、6∶4，洗脱速率为0.25ml/min，洗脱剂用量为400ml/gMEL。

In this dissertation, at first, the history and present situation of the research related to overheating is reviewed, and then the research works are carried out in following aspects the calculation of radiative properties of coal combustion, the solution of radiative transfer equation in absorbing-scattering media, the analyses of combined heat transfer processes in flue side, the computation method of steam temperature deviation of superheaters and reheaters and the inversion method of their wall metallic temperature in furnace, the numerical simulation of gas-solid two-phase flow, combustion and heat transfer in furnace, the measurement of outlet steam temperature of superheaters and reheaters, engineering reformation of overheating and optimum design of superheaters and reheaters, etc.

本文在综述了与过热器和再热器超温问题有关的研究历史与现状的基础上，在煤粉燃烧产物辐射特性的计算、含散射问题的辐射传递方程的求解、过热器和再热器烟气侧对流与辐射复合换热及汽温偏差的计算和炉内金属壁温的反演、炉内气固两相流动、燃烧、传热过程的数值模拟、过热器再热器炉外出口汽温的测量、过热器再热器超温问题的工程改造及设备的优化设计等方面进行了研究。

The optimum conditions of extracting cystine were confirmed, as follows: the waste wool pretreatment conditions are pH10, alkali solution temperature 50 ℃ and dry temperature 80 ℃; the waste wool hydrolysis conditions are hydrochloric acid concentration 32%, acid to hairs ratio 1.8:1, hydrolysis temperature 120 ℃, and hydrolys...

研究了预处理、酸解条件、脱色对羊毛胱氨酸提取量的影响，得出了最佳提取胱氨酸的条件，即在pH值为10、碱液温度50℃、烘干温度80℃预处理后的羊毛，在质量分数32%的盐酸、酸毛比1.8：1、水解温度120℃的条件下水解8h。经检测，按所优化工艺提取的胱氨酸符合标准。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。