组合方法

This paper proves compactly the conclusion that the first datum of original data lists doesnt work in the course of building GM(1,1) model.Further, A zero addend GM(1,1) combining forecasting approach that takes into account the first datum is developed.

对GM(1，1)基本建模过程中第一个数据不起作用的结论作了全新的简洁的推导，提出了计及第一个数据的零加数GM(1，1)组合预测方法。

Further more, the method of liquid combinational chemistry was introduced to the Evans aldol reaction, and two hapalosin analogues libraries contained 9 members and 27 members have been constructed in 9 steps respectively.

其次将液相组合化学方法应用于Evans aldol反应中，由此经9步反应分别合成了九组分和二十七组分的hapalosin类似物库。

After we have designed the lenses system, deflectors, beam aligner, stigmator and mass separator, integrated design of ion optical column was realized by using fifth order Runge-Kutta trace the ions directly. We also simulated the coulomb effect among ions through Monte Carlo method.

各个光学器件设计完成后，将它们组合起来采用五阶龙格－库塔法直接轨迹追踪，实现了离子束光柱体的一体化设计，并利用蒙特卡罗方法仿真了离子间的库仑力效应。

Based on this, to the recent years the related questions which appear frequently in the middle school mathematics competition, nimble utilization the aliquot concept, the relative prime nature, the combinatorial nature, the factorization, as well as the conclusion of the continual integer product nimbly can by aliquot knowledge and the methods, and so on, carried on the proof and the explanation.

在此基础上，对近年来在中学数学竞赛中频繁出现的相关问题，灵活运用整除概念、互素性质、组合性质、因式分解以及个连续整数的乘积能被整除的结论等知识和方法，来进行证明与解答。

The types of Subei basin, the structural features of main abundant hydrocarbons depressions, the features and genetic mechanisms of structural trap assemblages and the characters of oil-gas distribution are chiefly studied in this work with applying comparative structural geology, analytic structural geology and Earth dynamics, the control of the structure on oil-gas is generalized, and then the exploration targets were found based on these analysis.

综合运用比较构造学、解析构造学和地球动力学等方法，重点研究了苏北盆地成因类型、主要富烃凹陷构造特征、构造圈闭组合特征和成因、油气分布特征，总结了构造对油气分布的控制作用，在此基础上寻找有利的勘探方向。

Evolvement of plate in fifteen-roller combination leveler are studied in this paper using both analytic geometry and FEM.

用几何分析和数值模拟相结合的方法，研究了中板采用十五辊组合矫直机矫直过程中的变形演化状况。

Evolvement of plate in ifteen_roller combination leveler are studied in this paper using both analytic geometry and FEM .

用几何分析和数值模拟相结合的方法，研究了中板采用十五辊组合矫直机矫直过程中的变形演化状况。

Effects of explants,2,4-D,6-BA,NAA and AgNO3 on inducing buds were studied in pineapple(Ananas comosus cv.Hawaii) by using orthogonal design.

采用菠萝试管苗的叶片、叶鞘、茎段和茎薄片作外植体，以MS或1/2 MS为基本培养基，应用正交试验设计方法研究了不同浓度的2，4-D、6-BA、NAA和AgNO3对夏威夷菠萝不定芽的诱导效果，并在添加不同激素组合的培养基中进行芽的增殖和生根培养研究。

We utilized the simulated annealing algorithm to solve this kind of problems in this paper.

该算法是一种新的随机搜索方法，它是近年来提出的一种适合于解决大规模组合优化问题的通用而有效的近似算法。

Optimization arithmetic of objective function is introduced to determine the optimum combination of these prediction methods.

采用了一阶指数平滑模型、神经网络模型进行聚合物驱产量的预测和比较分析；引入了目标函数的评优算法来确定前述的预测方法的最佳组合策略。

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。