查询词典 Z

In Chapter 2, the D-symmetric solutions of matrix equation A~TXA = B on the linear manifold S ={X ∈ D~(-2)SR~|XZ = Y, Y = Y{D~2Z+D~2Z, Z~TD~2Y = Y~TD~2Z, Y,Z∈ R~}, by applying the generalized singular value decomposition of a matrix pair, the necessary and sufficient conditions for the existence and the expressions for the D-symmetric solutions of matrix equation A~TXA — B on the linear manifold are established.

运用矩阵对的广义奇异值分解，给出了这类线性流形上矩阵方程A~TXA=B存在D对称解的充要条件及其通解的表达式。另外给出了它的D对称最小二乘解的表达式。

In Chapter 4, the centro-symmetric solutions of matrix equation A~TXA = B on the linear manifold S ={X ∈ CSR~|||XY - Z||= min, Y,Z ∈ R~|}, using the quotient singular value decomposition of matrix pairs, the necessary and sufficient conditions for the existence and the expressions for the centro-symmetric solutions of matrix equation A~TXA = B on the linear manifold are established.

利用矩阵对的商奇异值分解，给出了这类线性流形上矩阵方程A~TXA=B存在中心对称解的充要条件及其通解表达式。

Recently, many coding experts have studied much of the Z_4-cyclic code(which is not necessarily linear) and its Gray map, and obtained a set of equivalent conditions in which a family of cyclic codes are linear, and the condition that this family codes are self-dual cyclic, and in this condition Nechaev-Gray image of the cyclic codes are self-dual cyclic.

近年来，已有编码学家对Z 4-循环码和Z 4上的映射作了深入研究，得到一类循环码是线性码的一系列等价条件，以及这类线性码是自对偶线性循环码的条件，在此条件下它的Nechaev-Gray像也是自对偶线性循环码。

Y! z" W9 Y/ K6 Q* h" Z access hatch from main deck and from pump room.

从主甲板和泵房设一出入舱口方便进入舵机间和艉侧推间。

Drawing shopping spend money fall in happiness sleep Z z zZand make somebody happy make self upset-=paint...etc

先天下之憂而憂〉。後天下之樂而樂。甜蜜幸福的配方。。只有我知道哦。。hoho~~只有最初的朦朧纔是天堂的美好。。

The optimal diagnostic model was developed by support vector machine algorithm with two protein peaks at Mass/Charge 3939 and 5909 respectively. The expression of protein peak at m/z 3939 was higher in chronic eczema and neurodermatitis than in MF, while that at m/z 5909 appeared to express in an opposite way.

结果 从15例蕈样肉芽肿与15例慢性湿疹、神经性皮炎患者的血清蛋白质谱中共检测出329个蛋白峰，从中筛选出30个表达差异有统计学意义（P 0.01）的蛋白标志物。

We uses a farther modified Meteorological Draught Severity Model ta calculate summer (6-8 months) moisture anomaly index Z far Changbai mountains area which based an the Palmer Draught Severity Model and the modified Palmer Draught Severity Model corrected by Liu Weiwei etc. and then the spatial temporal distribution of the Z values is analyzed by empirical orthogonal funtion expansion.

根据帕默尔旱度模式和刘巍巍等人修正的帕默尔旱度模式，以长白山地区20个气象站历年气温和降水资料建立长白山地区的旱涝指数模式，计算了能够反映长白山地区干湿变化的20个气象站1960-2005年夏季（6-8月）逐月水分距平指数。

Soil bulk density of Z treatment was gradually increased in three years, which was significantly higher than that of C treatment in 0~20cm soil layer. 2.2 Effects of tillage systems on soil moisture content There was significantly positive correlation between soil pondage and rainfall of the same period in R, H and Z treatments, and the correlation coefficient was higher than C, especially the H treatment, its correlation coefficient was 0.70**, which reached a highly significant level, and its soil water retention was better than C.

免耕模式土壤容重在0~20cm均逐渐增高，最终显著高于常规耕作模式。2.2耕作模式对土壤水分的影响 0~20cm土层旋耕、耙耕和免耕模式土壤贮水量与同期降雨量显著正相关，相关系数皆大于常规耕作模式，耙耕相关系数为0.70**，达到极显著水平，土壤保水性好于常规耕作模式。

In different growth stage, the soil pondage of R, H and Z treatments was larger than C, especially in anthesis stage, which indicated that R, H and Z could inhibit the useless evaporation of soil water before anthesis and promote grain filling. Different tillage systems had different Effects on soil pondage.

在作物不同生育时期，尤其是作物开花期，旋耕、耙耕和免耕模式的土壤贮水量高于常规耕作处理，这说明这三种模式可抑制作物开花前土壤无效蒸发，有利于促进籽粒灌浆。

It is found surprisingly,that the direction of the largest deff of the crystal is not in the principal plane as usual but along (θ=65.9°,=36.5°) and (θ=66.3°,=143.9°) and further,its value is direction dependent in the different phase regions.

计算出的曲线显示，YCOB晶体的最佳有效倍频系数的位置不是在x-z的主平面或接近于x-z主平面的位置上，而是在(θ=65.9°，=36.5°)和(θ=66.3°，=143.9°)两个位置上。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。