查询词典 w's

The main achievements of this dissertation are as follows: Let W be a nonsingular matrix. 1. Problem I and Problem II are considered under the matrix set S is as the following: 1 the set of real W-symmetrizable matrices; 2 the set of real W-symmetrizable nonnegative definite matrices; 3 the set of real W-symmetrizable matrices on the linear manifold.

对于问题I和问题II，本文就S是W可对称化矩阵集合、W可对称非负定化矩阵集合以及线性流形上W可对称化矩阵集合等三种情况进行了研究，分别给出了这三种情况下问题I的解存在的充分必要条件，以及解集合的通式表达式，给出了这三种情况下的最佳逼近解，并提供了相应的数值算法和数值实例。

Thi s paper s u mmari zed t he pri nci ples and met hods of t her mal techni que and its appli cati on i n st udyi ng ste m sap flo w ,s uch as water trans portati on pattern of ste m,i nternal and external factors affecti ng and regulati ng t he sap flo w ,calculati ng t he canopy sto matal conductance based on t he sap flo w value ,scali ng up i n s pace—ti me ,and sap flo w on ni ghtti me .

介绍了各种热技术测定树干边材液流的基本原理和方法，并对热技术在树干水分运输格局、影响和调节树干边材液流的内外因素、基于树干液流测定值推算林分冠层导度和尺度放大以及夜间树干液流等方面研究中的具体应用进行了综述。

SiO〓 crystal transformation was improved by adding Na〓SO〓, alpha cristobalite but not tridymite was catalytic active support. C〓 selectivity was improved by adding W and P, and suppressed deep oxidation property of SiO〓. W-O in catalyst surface was not active species. The support combined with S, W, P show low activity and high C〓 selectivity.

Na〓SO〓的加入促进了SiO〓晶型的转化，α-方石英是催化活性载体成分，而鳞石英没有甲烷氧化偶联反应活性。W和P的加入改善了C〓烃的选择性，抑制了SiO〓的深度氧化特性；W-O物种不是催化活性物种；由S、W、P及SiO〓组成的载体反应活性较差，但选择性较好；同时S元素对C〓烃的选择性的贡献有限。

JND Kelly, Early Christian Creeds; W Barclay, The Apostles' Creed for Everyman; S Barr, From the Apostles' Faith to the Apostles' Creed; P Fuhrmann, The Great Creeds of the Church; W Pannenberg, The Apostles' Creed in the Light of Today's Questions; J Smart, The Creed in Christian Teaching; HB Swete, The Apostles' Creed; H Thielicke, I Believe: The Christian's Creed; BF Westcott, The Historic Faith.

JND凯利，早期基督教教义； W巴克利，在使徒信经的普通人；语巴尔，从使徒信仰的使徒信经； P Fuhrmann ，伟大的信仰的教会； W潘内伯格，在使徒信经中根据今天的问题； J时髦，基督教信条教学；正面Swete ，在使徒信经； H 悌理柯，我相信：基督教的信条；高炉Westcott ，信仰的历史。

Results Using two methods, i.e., the mathematical simulation and las er surgery experiment the depth of thermal damage induced by laser irradiation i n biological tissues was determined. The CO2 laser power output was 1.50 W, 3 .15 W and 8.01 W, respectively, and irradiation time was 9-20 s. The avera ge value of relative deviation which represents the departure of the numerical s olution from the experimental result was 3.60%.

结果 当CO2激光功率分别为1.50、3.15和8.01 W，每种功率进行两种不同作用时间（9～20 s）的情况下，用激光医学实验和数学模拟计算两种方法去确定猪肌肉组织的热损伤深度，两者相对偏差的平均值为3.60%，最大相对偏差值为5.59%。

Furthermore, out of 497 fAFLP markers, 80 special bands were found to be able to distinguish the four groups from each other and may be applied for germplasm characterization and molecular assistant classification of Meretrix clam.4 Molecular classification of two species of Meretrix clam based on fAFLP and ITS sequences4.1 The results of fAFLP maker analysis of S, G and W showed that each group had their own specific loci among which there were 53 special loci in W group, much more than those of S group (14) and G group (21). Among the 53 loci, nine were all dominant loci. These unique loci could be taken as molecular markers to distinguish W from other groups. The genetic similarity indexes and distance matrix between S and G groups were 0.9585 and 0.0424 respectively, but the genetic similarity indexes and distance matrix between W group and S or G group was 0.7939 or 0.7941, and 0.2308 or 0.2305 respectively. The results revealed that significant difference existed between W and S or G groups in molecular genetic structure. The phylogenetic trees by the methods of UPGMA and NJ also indicated that S and G populations were very closely related, while W population was a relatively independent cluster, lying beyond the species which S and G belong to.4.2 The internal transcribed spacer region of the rDNA from S group, G group and W group were PCR amplified and sequenced. The results showed that the size of ITS ranged between 1266-1269bp in W group, while those in G and S groups were 1614bp and 1520bp respectively. The GC content ranged 62.32-62.62% in W group while it was 61.77% in G group. The genetic distances between three populations of W group were 0.001～0.003, but it was 0.110 or 0.147 respectively between W group and G group or S group. Phylogenetic trees by NJ method also showed that G group was very closely related to S group, while W group was a relatively independent cluster.

在457个总扩增位点中找出了53个W的特有位点，远多于S群体(14)和G(21)群体，而且在53个特有位点中有9个出现频率为100%的位点，这些位点可以作为区分其它2个群体的特征性标记；S– G群体特有的位点有112个，其中有4个位点出现频率为100%，可作为S– G群体区别于W群体的特征性标记。S群体和G群体间的遗传相似性系数为0.9585，遗传距离只有0.0424，在NJ和UPGMA法构建的亲缘关系的树状图上均首先聚在一起，说明二者的亲缘关系很近，应属于种内群体间的关系；而W与S和G的遗传相似性系数均较小(0.7939和0.7941)，相对遗传距离很大而且十分相近(0.2308和0.2305)，在亲缘关系树状图上单独分出一支，也表明W与S和G群体间的亲缘关系较远。4.2 ITS序列比较分析通过对白壳文蛤、山东文蛤和广西文蛤的ITS序列扩增电泳、PCR-RFLP分析和ITS序列分析发现，W的ITS序列长度在1266-1269 bp，而S和与G的ITS序列总长度分别为1520 bp和1614 bp；从ITS1和ITS2长度来看，W分别为739-741 bp和316-317 bp，S为895 bp和414 bp，G为987 bp和416 bp；而从ITS碱基组成来看，W的GC含量在62.32-62.62%之间，而G群体为61.77%。W的3个壳色不同群体间的遗传距离仅0.001、0.002和0.003，S与G群体间的遗传距离是0.010，说明W群体内变异很小，而S与G群体间已出现明显的遗传分化，但还均属于种内群体间的遗传变异；而W与G和S的遗传距离分别达到0.110、0.147，两个类群差异显著，已远超出种内群体间的遗传变异。

The structure of the compound 〓(1) consists of a pentanuclear molecule which is center-symmetric. One W atom is coordinated by four S atoms and two Cu atom. As expected, the Fe atoms are sandwiched between two staggered pentadiene rings. The most interesting aspect of the structure is that Fe-C-P-Cu-P-Cconstitutes a distorted hexagon and Fe-Cu-W-Cu-Fe is nearly in a line.

结构是以W原子为对称中心含有五个金属原子的线型结构，W原子与四个μ〓-S和两个Cu原子配位；Fe原子在两个戊二烯环中间形成一个三明治夹心结构；Fe〓-C〓-P〓-Cu〓-P〓-C〓-构成扭曲的六边形，由于两边1，1'-双二茂铁配体的作用导致Cu-S键的拉长。

The gathering crisis has been largely unnoticed because, for once, the harvests have failed in rich countries such as the United States and Australia, which normally export food, rather than in the world's hungriest ones.

z4 F； w% S- g 堆积的危机仍旧在被严重的忽视是因为，一次，发达国家例如美国，澳大利亚这些经常出口粮食的国家丰收未果，反而没出现在世界上最贫穷，饥饿的国家。

Geochemical characteristics indicate S-type granites and volcanic rocks depleted in sodium and enriched in potassium, with 62.42%～78.02% w(SiO2), 7.66%～9.13% w(K2O+Na2O), 1.18～2.62 w(K2O)/w(Na2O), and Rittmann index δ of 1.67～3.78. They are enriched in LREE with an average LREE/HREE ratio of 10.94×10-6, and generally depleted Eu with an minimum δEu less than 0.31 especially in the ignimbrite and biotite granite, which have experienced a significant process of separation and crystallization of plagioclases.ΣREE at the main stage of the magmatic activity decreases with time.

地球化学特征显示矿区火山——侵入岩属于贫钠富钾的S型花岗岩，其w(SiO2)值为62.42%～78.02%、w(K2O +Na2O)值为7.66%～9.13%、w(K2O)/w(Na2O)比值为1.18～2.62、里特曼指数δ为1.67～3.78；矿区岩石LREE/HREE比值平均为10.94×10-6，属于轻稀土富集型；Eu普遍亏损，特别是熔结凝灰岩、黑云母花岗岩δEu＜0.31，表明经历了显著的斜长石的分离结晶作用；自早至晚主阶段岩浆活动稀土总量逐渐降低。

Some characteristic ratios suggest the picrites and ankaramites were derived from asthenospheric mantle, and high Os/Ir ratios reflect the involvements of pelagic sediments. Pd/Ir versus Ni/Cu diagram implies that the picrites and ankaramites were not primary magmas, but MgO-high basalts with excess olivines, whereas Pd versus Cu diagram suggests a S-undersaturated primary magma.

一些铂族元素的特征比值指示了苦橄岩和富辉玄武岩起源于软流圈地幔，而高的w/w比值则暗示了源区中有深海沉积物的加入。w/w-w/w图解说明本区的苦橄岩不是原始岩浆，而是原始的高镁玄武岩中有过剩橄榄石的加入，而w-w图解则说明原始岩浆硫不饱和。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。