查询词典 optimum programming

The result indicated that: the amount of the excess HF formed direct ratio to the yield of phosphorus pentafluoride and the optimum amount of the excess HF used is about 35%; the trickling rate of oleum shouldnt make the temperature of hexafluorophosphoric acid exceed 25 ℃ and the amount of oleum is 110% to 125% that of stoichiometry so that the content of phosphorus pentafluoride can be achieved 90%; the time and temperature of heating hexafluorophosphoric acid influenced both the yield and the content of phosphorus pentafluoride, and the optimum time should be about 30 minutes and the proper temperature was 148 to 153℃; when alcohol used asrefrigerant, the content of phosphorus pentafluoride was 94.03%, and the content can be up to 97.38%, provided that using liquid nitrogen as refrigerant.

通过实验发现，氟化氢用量与五氟化磷的产率成正比，最佳过量百分率宜在35％左右；发烟硫酸的滴加速度不能使中间产物温度大于25℃，发烟硫酸用量大于理论量10％～25％时，得到的五氟化磷纯度高于90％；六氟磷酸的加热温度对五氟化磷的产率和纯度均有影响，宜在148～153℃的范围内，加热时间应在30分钟左右；用工业酒精做冷凝介质得到的五氟化磷纯度最高只能到达94.03％，使用液氮做冷凝介质可以使五氟化磷的纯度达97.38％以上。

The toxicity of soil artificially contaminated by heavy metals was assessed with Photobacterium phosphoreum.The results showed that the duration of optimum balance was 24 hours, and that of optimum extraction was 2 hours.

应用明亮发光杆菌T3对重金属污染土壤的毒性进行诊断，确定了实验室中采用人为定量投加污染物的情况下，土壤的最佳平衡时间为 2 4h ，最佳浸提时间为 2h ，最佳浸提剂为 0 。1mol·L-1Hcl。

Through measuring the solubility,stability and hydrolyzation property,the effect of additives on the characteristics of concentrated aqueous reactive blue P-3R was investigated. The results showed that among the four kinds of organic solvents,N-methyl pyrrolidone was the best one and its optimum dosage 10%. Na_ 2 HPO_ 4 /NaH_ 2 PO_ 4 was a better buffer and its optimum dosage was 3%.

通过对液态染料溶解性、稳定性、耐水解程度等的测试，综合考察了添加剂的种类及用量对高浓度液态活性艳蓝P-3R性能的影响，结果表明在所考察的四种有机共溶剂中，N-甲基吡咯烷酮的效果最好，且其最佳用量为10%；缓冲溶液中Na2HPO4/NaH2PO4的效果较好，最佳用量为3%。

Chapter 2 discusses the function of optimum array based on the minimum meansquared error principle in CDMA system, the method of produce the reference signal, and proved whether the reference signal is the correspond PN code sequence or respread signal, the result of the array's weight converge can converge the same optimum weight under the condition that the PN sequence in a bit of data is long enough. In this chapter, we finally get the beam pattern and the correlate bit error rate after converge when several CDMA signal arrives in different direction.

本文的主要贡献及创新之处是：首次从理论上探讨了基于最小均方误差准则的最优天线阵在CDMA系统中的多址干扰抑制性能及其参考信号的产生方法，证明了采用有用信号相应的扩频码作为参考信号与采用将解扩信息与扩频码进行重扩频后的信号作为参考信号来调节自适应天线的权值均可使权值收敛于同一最优解。

Soluble immobilized papain can fully solubilize above the pH 5.5.The optimum pH range of papain was narrow,and its optimum temperature and Km value were all

可溶性固定化木瓜蛋白酶能够在pH5.5以上的溶液中完全溶解，最适作用pH值范围变窄，最适作用温度和Km值升高；热稳定性和酸碱稳定性均明显增强。

Soluble immobilized papain can fully solubilize above the pH 5.5.The optimum pH range of papain was narrow,and its optimum temperature and Km value were all higher than before.Its thermodynamtic stability and the acid-base stability were also strengthened.

可溶性固定化木瓜蛋白酶能够在pH5.5以上的溶液中完全溶解，最适作用pH值范围变窄，最适作用温度和Km值升高；热稳定性和酸碱稳定性均明显增强。

The serum selenium is first digested by microwave treatment and then chemically purified before analysis by using sulphydryl cotton. The optimum conditions were found to b as follows:(1) The sulphydryl cotton column is prewashed with 5 mol/L hydrochloric acid;(2) Se is desorbed by adding 1 mL of concentrated nitric acid and (3) the optimum amount of sulphydryl cotton is 0.14 g. This preconcentration step is required in order to remove matrix-interfering elements, such as Na, Mg, K and Ca.

采用微波消解－巯基棉分离对人血清样品进行前处理，通过对巯基棉分离血清中硒的条件优化，结果表明，柱条件为5mol/L HCl、解脱Se条件为1mL重蒸HNO3、巯基棉最佳用量为0.14g时，能够有效分离出人血清样品中的Na、Mg、K、Ca等碱金属和碱土金属，同时硒的回收率最高，达到92%以上。

The researching content was as follows: 1. When AlClx/HY zeolite be used as catalyst, the effects of the ratio of 2-methylnaphthalene to tetramethyl benzene, catalyst concentration, reaction temperature and reaction time on the conversion (based on 2-methylnaphthalene), yield and selectivity (both based on 2,6-DMN) were discussed. In addition, by orthogonal experiment, the optimum reaction conditions were determined at the same time. The optimum reaction conditions : the molar ratio of 2-methylnaphthalene and tetramethyl benzene =1:1, reaction temperature was 400℃.

具体研究如下： 1、以AlClx/HY型分子筛为催化剂，研究原料配比(2-甲基萘与均四甲苯的摩尔比)、反应温度和反应时间对2-甲基萘的转化率、目的产物2，6-DMN的收率和选择性的影响，并通过正交实验确定了该催化剂体系下的最佳反应条件为：原料的摩尔比为(2-甲基萘：均四甲苯)=1：1，反应质量空速为6h-1，反应温度为400℃。

The optimum conditions were achieved and demonstrated as follows: ethanol solution (volume fraction as 60 %) as extraction solution, the ratio of materials to solution as 1:20, microwave power as 600 W and 2 mm extraction time. By the optimum conditions, the yield (83.7%) of flavone from Trollius chinensis Bunge was obtained at 83.7%.

实验结果表明：微波辅助提取金莲花黄酮的最佳工艺条件是体积分数60%乙醇为溶剂，每克料浸提剂体积为20mL，微波功率600W，温度60℃，提取时间2min。

These skills allow him to use the viticultural 'strengths' of an area to create the optimum quality wine at the optimum cost.

这些技能使他能够使用葡萄种植作为优势，以最佳成本生产出最佳的优质葡萄酒。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。