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fractions相关的网络例句

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The Dinkelbach-type algorithm for generalized fractional program whose objective function is composed of infinite fractions was generalized. Properties of a parameter program and convergence of a class of generalized algorithm were discussed.

就一类目标函数中有无限个分式的广义分式规划问题,在已有的相应的Dinkelbach型算法的基础上作了进一步的推广,使其成为一簇算法;讨论了一个参数规划的性质和该簇算法的收敛性。

For a class of generalized fractional programming whose objective function is composed of infinite fractions,the saddle-point type optimality criteria are proven by using the existing necessary conditions,under the assumption of the class of B--invexity.

对于一类目标函数中有无限个分式的广义分式规划,给出一个不完全Lagrange函数,并利用已有的最优性必要条件,在B--不变凸性的条件下,证明了鞍点最优性准则。

A sequential extraction technique to fractionate P and the method proposed by Bremner to separate N in different fractions were used.

本试验利用Sui 和 Thompson (1999)序列萃取法,以不同强弱的萃取剂来划分土壤中的磷,将土壤磷划分为水萃取磷、碳酸氢钠萃取有机磷及无机磷、氢氧化钠萃取有机磷及无机磷、盐酸萃取磷及残余磷;利用 Bremner (1965)的土壤有机态氮划分法将土壤有机态氮划分为水解性全氮、水解性铵态氮、胺基醣态氮、胺基酸态氮及不可辨认的水解性氮。

Experiment data of HCB desorption were simulated better by fast2slow two stage first2order kinetics model and dynamic parameters of HCB desorption were also calculated. Frap and Fslow , the fractions of contaminant present in the rapidly and slowly desorbing sediment compartment , were respectively 3716 % and 6214 %; krap and kslow , the rate constants of rapid and slow desorption , were 01066 9h - 1 and 01000 5h - 1 , respectively.

快、慢2 段一级动力学模型较好地拟合了六氯苯释放的实验数据,并得出了释放动力学参数:快速和慢速释放部分所占的质量分率Frap , Fslow分别为3716 %和6214 %;快速和慢速释放速率常数krap , kslow分别为01066 9h - 1和

The changes of mechanical properties of furan resin mortar in two cases were studied. One case was the furan resin mortar was mixed with Durafiber of variable volume fractions.

研究了不同体积含量的杜拉纤维及同一体积含量的杜拉纤维经不同的硅烷偶联剂处理后掺入呋喃树脂砂浆中,其力学性能的变化。

Thawing frozen fruits converted their glucoside and galactoside containing fractions into carcinogenic substances.

解冻冷冻水果的葡萄糖转化和半乳糖苷组分含有致癌物质进入。

Euler's gamma function gives factorials for integers but has surprising values for fractions.

欧拉的Gamma函数给出阶乘为整数,但令人惊讶的价值观为馏分。

The gasolene, kerosene, and the gas oil fractions are purified to remove unwanted materials, mainly sulphur compounds.

汽油,煤油,和气体油馏分被提纯以去除不想要的物质,主要是硫化物。

This study focuses on the use of the Geometer's Sketchpad, educational software used to design dynamic visual activities for learning the concept of equivalent fractions.

本研究乃为单一个案研究,在动态几何软体( Geometer's sketchpad )的辅助下,利用建构学习及视觉表徵理论,让使用者藉由图像的切割与再分割,来进行为期三周八节课的等值分数补救教学课程。

The essential oil was prepared from the peel by solution extraction, and separated into fractions of hydrocarbon and oxygenated compounds through a silicagel column. As the oxygenated fraction had the characteristic aroma of the peel oil, odor quality of the fraction was estimated on the basis of a odor unit value. Twenty five compounds such as geranial, neral, linalool and aliphatic aldehydes were selected as the components contributed to the aroma of the peel oil.

用溶剂萃取法提取白柠檬果皮的精油,并用硅胶柱将精油分成碳氢化合物和含氧化合物两大部分,由于含氧化合物部分具有果皮油的特征香气,利用各成分的香气值对该部分进行了评价,明确了香叶醛、橙花醛、沉香醇以及一些脂肪族醛等25种成分对白柠檬果皮油香气起着重要作用。

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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。