组合方法

The number of combination values of these attributes is also very few in massive relations so that there are a lot of repeated combination values of these attributes in massive relations.

因此，海量关系在这些属性上有很多重复的组合值。一种提高数据库的存储和查询效率的重要方法就是消除这些重复取值。

This paper discusses a fast calculation method of GPS carrier phase integer ambiguity resolution, analyze independent variables in search space, derivate new residual transition matrix which directly associates all measurement error with minimum search space, and search space is minimized through selecting the ambiguity combination which is consistent with satellite geometry size and measurement error.

探讨了一种GPS载波相位整周模糊度的快速求解方法，分析了搜索空间中的独立变量，推导出了新的传递矩阵。该矩阵将所有的测量残差直接和最小求解搜索空间相关联，通过仅选择那些与卫星几何尺寸和测量残差一致的模糊度的组合，搜索空间被最小化。

Fault detection of the integrated navigation system usually designed with method based on Kalman filter. Its detection-performance mostly rests with residuary sensitivity relative to the faults.

组合导航系统故障检测通常采用基于卡尔曼滤波器的设计方法，其检测性能主要取决于残差对故障的敏感度。

And finally, don't settle for an inexpensive 3 ring binder as your portfolio.

最后，不要在设计组合中简单地运用3种方法。

In the analysis, a nonlinear wave vibration equation of the thin cylindrical shell including damping and items due to geometric nonlinearities was established and then transformed by Galerkin's method. With different combinations of modes different nonlinear differential equations in modal coordinates were obtained. The Runge Kutta method was used to solve the equations numerically and some features of nonlinear wave vibration were discussed.

在研究过程中，首先，考虑阻尼并引入几何非线性项，建立薄壁圆柱壳的非线性波动方程，然后，采用Galerkin方法对波动方程进行转换，选取不同的模态组合，得到相应模态坐标下的非线性微分方程，最后用Runge-Kutta法进行数值计算并对圆柱壳的非线性波动振动特性进行了分析。

Three different populations of diploid potato were employed to study chip color in this experiment. Seven different processing traits among the three populations were analyzed. According to a certain program of chip processing, all genotypes in three populations were evaluated strictly on their chip colors. The molecular markers of chip color genes were studied with the method of Bulked Segregant Analysis.

本研究选用了3个不同组合的二倍体马铃薯炸片群体材料，在群体间对7个不同的加工性状进行了比较分析，按照一定的炸片加工程序对3个群体所有单株进行了炸片颜色鉴定，并采用混合分组分析方法进行了马铃薯炸片颜色基因的RAPD标记。

This study not only applies comprehensively cores, logging, well logging, seismics, analysis assay data and paleontology data, but also adopts the latest theories and technique and methods of sequence stratigraphy, high-resolution stratigraphy, sedimentography, oil-gas geology, geophysics, stratigraphic paleontology and geochemistry, etc.

借鉴前人研究成果，综合利用岩心、录井、测井、地震、分析化验资料及古生物资料，应用层序地层学、高分辨率地层学、沉积学、地球物理学、古生物地层学、地球化学等多学科的新理论、新技术和新方法，发挥多学科联合攻关的优势，对松辽盆地北部西部斜坡中部含油组合进行了系统而精确的层序地层及沉积体系研究。

In order to avoid constructing state space model many times, we propose sentential input method based on the phoneme further. It integrates the syllable segmentation into sentence transformation and inserts a phoneme rather than a segmented syllable each time. It can get optimal result by one construction of status space model composed with all the candidate words produced by all the possible syllable combination.At last we design a test program to constrast this input method and Microsoft Pinyin input method to improve our sentential function.

为避免多次构造状态空间模型，进一步提出基于音素的整句实现方法，将音节切分融入整句转换之中，仍然使用状态空间模型，只不过每次插入的是一个音素，而不是切分好的音节，对插入的音素节点，往前搜索，直接将该音素与前面已经输入的音素能组合形成的所有拼音串对应的候选字词插入状态空间，参与整句转换，通过构造一次状态空间模型得到全局最优解。

Sequential control design method is an advanced regular design for design of PLC ladder diagram .

顺序控制设计法是PLC 梯形图的一种先进规范的方法，将其应用于组合机床控制系统中，使控制软件与工序动作有较好的对应关系，编制和调试效率高。

Through its further study and master the various combinations of logic circuits and sequential circuits Principle and usage.

通过它可以进一步学习与掌握各种组合逻辑电路与时序电路的原理与使用方法。

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。