查询词典 B.E.

In Chapter 3, the generalized skew-symmetric solutions of the matrix equation A~TXA = B on the linear manifold S ={X e GKSR~|||XY - Z}}= min, Y, Z∈ R~}, using the canonical correlation decomposition of a matrix pair, the necessary and sufficient conditions for the existence and the expressions for the generalized skew-symmetric solutions of matrix equation A~TXA — B on the linear manifold are established.

利用矩阵对的标准相关分解，给出了这类线性流形上矩阵方程A~TXA=B存在广义次对称解的充要条件及其通解表达式，并且导出了极小Frobenius范数广义次对称解的表达(来源：d7d7A7dBC论文网www.abclunwen.com)式。

In Chapter 5, the least-squares solutions bisymmetric matrix set of the matrix equation ATXA = B on two linear manifolds Si ={X BSRnxn\\\XY - Z\\ = min} and S2 ={X BSRnXn\XY = Z, YtTZi = ZjYu ZtffYi = Zi,i = 1,2, Y, Z e Rnxm}, by applying the singular value decomposition of matrix and the canonical correlation decomposition of matrix pairs, we obtain a general expression of the least-squares solutions of the matrix equation ATXA = B on two linear manifolds.

在第五章，我们研究了两类线性流形S_1={X∈BSR~|‖XY-Z‖=min}和S_2={X∈BSR~|XY=Z，Y_i~TZ_i=Z_i~TY_i，Z_iY_i+Y_i=Z_i，i=1，2，Y，Z∈R~}上矩阵方程A~TXA=B的双对称最小二乘解。

Lastly,we present an algorithm to isolate real roots of a univariate spline, i.e., computing asequence of disjoint intervals such that each of them contains exactly one real root of agiven spline function, which is primarily based on the use of Descartes\' rule of signs withits B-spline coefficients and de Casteljau algorithm of B?

最后，基于B-样条系数的Descartes符号准则和Bézier曲线的de Casteljau算法，我们给出了一元样条实根分离算法，也就是计算出一列不相交区间，使得每个区间恰好只包含此样条函数的一个实根。

Q: The balls of A and B lie near each other through the green. A plays and in doing so affects Bs area of intended stance (e.g., by creating a divot hole).

问：A和B的球都停在果岭通道，彼此离的很近。A打球会影响B站立姿势的区域（比如通过制造一块削起的草皮）。

Each letter is used exactly once.1{"ABC","FED","GAI"}"ABCDEA"Returns: 2Once we get to the ''E'', we can choose one of two directions for the final ''A''.2{"ABC","DEF","GHI"}"ABCD"Returns: 0We can trace a path for "ABC", but there''s no way to complete a path to the letter ''D''.3{"AA","AA"}"AAAA"Returns: 108We can start from any of the four locations.

在例1的find字符串的第一个字符是''A''，我们可以看到在相应的grid中，''A''在两个位置上出现，由于起点不限，所以我们搜索到的起点有2个；find的第2个字符是B，我们可以看到grid中只出现了1个B，而按照题目要求移动的话，显然只有左上角的那个A可以移动到这个B的位置。

By employing two kinds of molecular marker of mitochondrial DNA, i. e. Cyt b and CoI gene, the sequences of 15 species representing 6 families from Passeriformes were compared. We analysed their sequences compose and characteristic with the sorft of MEG3.1, and built the phylogenetic trees in PAUP~*4.0. We deeply analysed the feasibility that CoI gene qua the marker to research the phylogenetic relationship of Passeriformes, and afford the academic proof for building the DNA barcoding of the birds.

本文分别以线粒体DNA的细胞色素b和CoI基因作为分子标记，对雀形目6科15种鸟类的细胞色素b基因全序列(1，143bp)和CoI基因部分序列(1，176bp)的组成特点及其系统发育树进行了比较分析，还探讨了CoI基因作为雀形目系统发育研究和构建鸟类物种DNA编码库的分子标记的可行性，旨在为DNA编码库的构建积累基础资料。

The study on the development and reproduction of B-biotype Bemisia tabaci on four cucurbitaceous host plants, i.e., cucumber, hairy gourd, bitter cucumber, and sponge gourd, showed that the one generation development duration of B.

研究了B型烟粉虱在4种葫芦科寄主植物黄瓜、节瓜、苦瓜和丝瓜上的发育和繁殖特性。

When coverage varying from high to low, the parameter a decreasing, and b increasing. The fitted regression equation between total vegetation coverage and runoff duration as following, C = 3.4881nt_p -11.772 (R~2=0.9477). The equation shows that the vegetation is positive correlation to duration, i.e.

高寒草甸产流、产沙的试验结果表明，不同植被盖度的嵩草草甸其产流、产沙过程可以用幂函数R=at~b分布来描述，随着盖度由大变小，方程参数a值逐渐变小，b值逐渐增大；而覆盖度在5％以下的黑土滩，其产流、产沙过程更符合指数函数R=ae~分布。

However, the government soon seized Yug a nsknefteg a z a nd a uctioned it of f to a front comp a ny c a lled B a ik a lFin a nceGroup, which h a d been registered two weeks e a rlier a t the a ddress of a vodk a b a r in the provinci a l Russi a n town of Tver.

然而，不久俄政府就接管了Yug a nsknefteg a z并将其拍卖给了皮包公司B a ik a l金融集团（拍卖前两周以州立小镇Tver的一家伏尔加酒馆的地址注册的公司）。

Hoose either A o r B and tick one of A/B box.

E 请选择 A B 其中一项及在方格内加上号。

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。