数

Performing addition and subtraction with signed integer numbers can be described as moving a certain number of units in one direction or another.

做加跟减用符号数可以被认为是在数线上正向或负向移动几个单位，作2个数相加你可以发现第1个数在数线上的大小且往正向移动第2个数字大小的单位。

Using quadratic rotational regression combination design to study the influence on yield and economic characters in different fertilizer and density of the rape, the result showed that the influence of density and fertilizer on yield and active silique per plant were significant but the quantity and weight of seed, while the influence of density on active silique per plant was higher than that of fertilizer but on yield was contrary.

结果表明，在本试验范围内，施肥量和密度对油菜单株有效角果数和产量均有显著的影响，对单株有效角果数的影响是密度大于施肥量，而对产量的影响则是施肥量大于密度；单株有效角果数的最佳组合为施肥量以纯氮227.0kg/hm2、密度9.4万株/hm2，产量的最佳组合为施肥量以纯氮235.7kg/hm2、密度10.6万株/hm2；当控制施肥量、密度分别为214.4—256.9kg/hm2、10.1—11.1万株/hm2时，油菜产量可达3000kg/hm2以上。

Thecompare of genetic map between Lowes and ours showed 26 homology marker situ,which occupied 21.1% of the marker situ in the experiment. 81 QTLs were detected for 11 agronomic traits. 4 QTLs were detected for plantheight, which explained 10.3%～28.9% of trait variance; 2 QTLs were detected forNo. of effective 1-st branches, which explained 22.1%～47% of trait variance; 16QTLs were detected for effective branches height, which explained 12.2%～51.8% oftrait variance; 15 QTLs were detected for length of main inflorenscence, whichexplained 7.4%～26.6% of trait variance; 5 QTLs were detected for effective siliquesof main inflorenscence, which explained 11.2%～25% of trait variance; 1 QTLs weredetected for density of main infiorenscence, which explained 17.3% of trait variance;12 QTLs were detected for length of silique, which explained 24%～36.7% of traitvariance; 2 QTLs were detected for seed per sillique, which explained 9.6% and16.9% of trait variance; 2 QTLs were detected for 1000 seed weight, which explained26%～13.7% of trait variance; 11 QTLs were detected for Total effective siliques perplant, which explained 14.8%～47.2% of trait variance; 11 QTLs were detected forplant height, which explained 14.3%～32.8% of trait variance.

其中，株高检测到4个QTLs，解释性状表型变异的10.3％～28.9％；一次有效分枝数检测到2个QTLs，解释性状表型变异的22.1％和47％；有效分枝部位检测到16个QTLs，解释性状表型变异的12.2％～51.8％；主花序长度检测到15个QTLs，解释性状表型变异的7.4％～26.6％；主花序有效角数检测到5个QTLs，解释性状表型变异的11.2％～25％；主花序角密度检测到1个QTLs，解释性状表型变异的17.3％；角果长度检测到12个QTLs，解释性状表型变异的24％～36.7％；每角粒数检测到2个QTLs，解释性状表型变异的9.6％和16.9％；千粒重检测到2个QTLs，解释性状表型变异的26％和13.7％；单株有效角果总数检测到11个QTLs，解释性状表型变异的14.8％～47.2％；单株产量检测到11个QTLs，解释性状表型变异的14.3％～32.8％。

In this paper, a constructive proof of singular value decomposition of quaternion matrix is given by using the complex representation and companion vector of quaternion matrix and the computational method is described.

四元数矩阵的奇异值分解是四元数矩阵理论的重要内容，奇异值分解在四元数矩阵的理论研究和数值计算中都起到非常重要的作用。

The three dimension reticular cell counting method is adopted to calculate the fractal dimension characterizing skew degree of gray level surface. With the two-dimension reticular cell counting method, the fractal dimension characterizing wrinkle shadow block distribution is obtained. By means of distribution function, the fractal dimension for the size distribution of wrinkle shadow block can be achieved.

提出以尺度变化的立体网格计算灰度曲面的分维数，表示灰度曲面的起伏程度；以尺度变化的平面网格计算织物折皱阴影块分布的分维数，表示阴影块的离散程度；以当量直径为尺度，计算分布函数的分维数，表示织物折皱阴影块尺寸的分布。

Seven series of monoethylalkanes found in the soil can also be detected in the stalagmite and they exhibit the same distribution patterns.

烷基环己烷的分布在土壤与石笋中呈现了相似的分布模式，但是主峰碳数有所变化，高碳数部分与低碳数部分的相对含量也发生了变化。

The oxidation of diethyl stilbestrol was dependent on adsorption controlling process at MWNT /graphit modified electrode. The transmitted electron number, 2, was calculated by LAVIRON formula. By the linear relationship of peak potential and pH, it can be inferred that the transmitted number of electron and proton were equal.

己烯雌酚在MWNT/石墨修饰电极上的氧化过程靠吸附控制；由峰电位Ep与溶液pH存在的线性关系求出参与电极反应的质子数与电子数相等，由LAVIRON公式求解出参与电极反应的电子数为2。

According to the definition of stochastic crisp comparison matrix, the local consistency and local satisfactory consistency for the incomplete pairwise comparison matrix are defined.

本文还针对另一类区间数判断矩阵——区间数互补判断矩阵提出了一种新的权重求解方法，进一步完善了区间数判断矩阵权重求解的理论框架。

The use of logic switch plate 16 to enter a binary number, using seven-segment LED digital display control circuit board LED seven-segment display, circular display with the input binary number 16 corresponds to the four hexadecimal digits.

利用逻辑开关板输入一个十六位的二进制数，利用LED七段数码显示控制电路板的LED七段显示器，循环显示与所输入的十六位二进制数相对应的四位十六进制数。

In this paper,we mainly make a deep and systematic study of sample path prop-erties for high and infinite dimensional Gaussian processes,especially for high andinfinite dimensional Wiener process in stronger norm-Holder norm than ever(everbefore,there used to be uniform norm and the process was limited to one dimen-sion).We not only deal with all kinds of functional moduli of continuity,but alsoconcern with different forms of functional limit theorems of C-R increments.

本文主要对高维的以至无穷维的Gauss过程、特别是Wiener过程的样本轨道性质在较以往更强的范数—〓范数下作了系统深入的研究（以往通常采用一致范数，过程限于一维），研究的内容不仅包括各种形式的泛函连续模，而且还包括各种形式的C-R增量的泛函极限定理。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。