查询词典 dominant position

The results showed that Liquidamba formosana, Quercus acutissima, and Quercus fabri populations had the dominant positions in the forest community of Purple Mountain Area of Nanjing. During the growth process, the mortality of L. formosana, Q. acutissima, and Q. fabri were higher in low age. After entering into the middle-age stage, the upper space was occupied by oak and L. formosana population all died. The mortality of Q. acutissima and Q. fabri populations were increased with the increasing of diameter class. L. formosana population in the Purple Mountain Area of Nanjing belonged to be the typical growing population and Q. acutissima population was a decreasing population. Q. fabri population belonged to be the growing population on the whole, but the diameter class in middle parts was incomplete and the population was difficult to be renewed. Among the studied quadrate, only one dominant population showed an aggregated distribution and other dominant species showed the random distribution. Either, all the dominant species in all the quadrates presented random distribution.

结果表明，枫香种群、麻栎种群和白栎种群在南京紫金山地区森林群落中占有优势地位；枫香种群、麻栎种群和白栎种群在其生长过程中，在低龄时期，死亡率都较高，进入中龄期后，由于上层空间都被栎木占据，枫香种群全部死亡，而麻栎种群和白栎种群的死亡率则随着径级的增大而增大；南京紫金山地区枫香种群属于典型的增长型种群，麻栎种群属于衰退型种群，白栎种群总体上属于增长型群落，但中间径级不完整，种群更新较为困难；在所研究的每一个样方中，一般只有一个优势物种呈聚集分布，而其他优势物种呈随机分布，或样方中所有优势物种都呈随机分布。

However remarkable impacts were observed in the plantation in terms of community physiognomy,community structure,species composition,species richness,and biomass accumulation.1 Planting trees made community structure simple.Betula alnoidis plantation had three layers including a dominant arbor layer,a complex and well developed shrub layer and a poorly developed vine layer.The arbor layer contained few species and had a single layer.The mountain rain forest had 4 layers including the dominant arbor layer,shrub layer,grass layer and vine layer.The vine layer was well developed and very rich in species composition,and the arbor layer contained as many as 38 species that could be grouped into 3 layers.2 Sequenced by the important value,main species for the plantation and the nature forest were totally different,and the plantation had one dominant species while the nature forest contained many dominant species.3 Planting trees changed the community physiognomy.

但是人工种植西南桦林对群落的季相外貌、群落的结构、物种组成、物种丰富度以及生物量等方面有较大的影响。1人工造林使得群落结构简化，西南桦人工林的层次结构有3层，以乔木层占优势，并且有种类多而发达的灌木层，同时，藤本植物欠发达，但是乔木层树种单一，明显仅有一层；山地雨林的层次结构有4层，以乔木层占优势，还有灌木层、草本层和藤本植物，藤本植物种类多，十分发达；乔木层树种丰富，可达38种，乔木层还可分为3层。2人工造林较大程度地改变了群落的物种组成，根据重要值的大小排列，人工林和天然林的主要物种组成已经完全不同；并且人工林单优树种明显，而天然林就含有较多的优势树种。3人工造林改变了群落的外貌。

A hammer drill, in particular a chipper comprising: a body 2 having at least one support handle 4; an electric motor mounted within the body 2 ;an electric switch 22, capable of being switched on and off by a trigger button 8 connected to it, to activate or deactivate respectively the electric motor, wherein the trigger button 8 is moveable between two positions, a first position where the electric switch 22 is off and a second position where the electric switch 22 is on; a locking arm 38 moveably mounted on the electric switch 22 which, when the trigger button 8 is located in its second position, is moveable between two positions, a first position where it is disengaged from the trigger button 8 and a second position where it engages with the trigger button 8 and holds the trigger button 8 in its second position.

锤钻特别是錾，包括：本体(2)，该本体(2)具有至少一个支撑手柄(4)；安装在本体(2)内的电动马达；电开关(22)，该电开关(22)能够由连接到电开关(22)上的触发按钮(8)接通和断开，从而分别使电动马达启动或停用，其中该触发按钮(8)能够在两个位置即第一位置和第二位置之间移动，在该第一位置处电开关(22)断开，在该第二位置处电开关(22)接通；可移动地安装在电开关(22)上的锁紧臂(38)，当触发按钮(8)位于它的第二位置中时，该锁紧臂(38)能够在两个位置即第一位置和第二位置之间移动，在该第一位置处锁紧臂(38)与触发按钮(8)脱离，在该第二位置处锁紧臂(38)与触发按钮(8)接合并将触发按钮(8)保持在触发按钮(8)的第二位置中。

The hanging strip device includes: a hanging strip device main body; a winding section for performing the winding of the hanging strip; a winding auxiliary section, which is configured at a state that the rotation relative to the hanging strip device main body is limited and can move between the first preset position and the second preset position relative to the winding section, wherein, at the first preset position, the rotation of the winding section makes the hanging strip wrap is restricted, at a second preset position, the winding section can perform the drawing-out rotation for drawing out the hanging strip; a force applying part, which applies a press pressure to make the winding auxiliary section at the first preset position; and a convex part which allows the winding auxiliary section to be at preset point contact status relative to the hanging strip device main body when the winding auxiliary section is at the first preset position.

置在该吊带装置主体内，而且能够在第一预定位置和第二预定位置之间相对于上述卷绕部移动，其中，在上述第一预定位置，上述卷绕部的使上述吊带回绕的旋转被限制，在上述第二预定位置，上述卷绕部能够进行用于抽出吊带的抽出旋转；施力部，其施加将上述卷绕辅助部按压向上述吊带装置主体的按压力，以使该卷绕辅助部处于上述第一预定位置；和凸起部，其设置于上述卷绕辅助部或者上述吊带装置主体的任一方，在该卷绕辅助部处于上述第一预定位置时，上述凸起部使该卷绕辅助部相对于上述吊带装置主体成为预定的点接触状态

On this industry catenary, limited company of astral science and technology in home as the earliest production cheers the enterprise of machine, changing terminal to sell course of study to offer for Chinese oil stone in recent years cheer equipment and relevant service respect, with its original technical dominant position, service dominant position reachs advantage of credit, brand, won terminal of Chinese oil petrifaction to sell the general self-identity of the enterprise, its cheer machine product home market to have rate year after year to increase by degrees, already amounted to 40 ％ left and right sides at present.

在这条产业链上，正星科技有限公司作为一家在国内最早生产加油机的企业，近年来在为中国石油石化终端销售业提供加油设备及相关服务方面，以其独到的技术优势、服务优势及信誉、品牌优势，赢得了中国石油石化终端销售企业的普遍认同，其加油机产品国内市场占有率逐年递增，目前已达 40％左右。

The results showed that the MS2 fragmentation pathways of DASSSB were affected by the character and position of substitutes on salicylidene phenyl. The C=N cleaving to form fragmentation ion [M+H-283](superscript +) was dominant for DASSSB compounds with electron-donating group on the C4 of the salicylidene phenyl; while fragmentation ion [M+H-254] (superscript +) forming by C-C cleavage of the β-position of C=N was dominant for DASSSB compounds with electron-withdrawing group on the C5 of the salicylidene phenyl.

结果显示，这些化合物的ESI-MS/MS裂解方式与它们分子中水杨醛苯环上取代基的性质和位置有关：当水杨醛苯环上4位连接供电子取代基时，分子以CN双键断裂为主，生成[M+H-283]碎片离子；当水杨醛苯环上5位连接吸电子取代基时，分子以CN双键β位的C-C键发生断裂为主，生成[M+H-254]碎片离子。

Obtain this degree result while, working key also began to transfer, with respect to this company project in expert, next main attack direction basically is 3: Brand authority client, after the dominant position that studied oneself project and the demand of the partner in a few plans, the demand that begins the dominant position that uses oneself website and website of the other side begins to implement cooperative plan for starting point.

取得这个程度效果的同时，工作的重点也开始转移了，就拿手里的这个公司项目来说，接下来的主攻方向主要是三个：品牌权威客户，在研究了自身项目的优势以及一些计划中合作伙伴的需求后，开始用自身网站的优势与对方网站的需求为着眼点开始实施合作计划。

In chapter one, firstly, we introduce the properties of αdiagonally dominant matrix and some exists determination conditions of generalized strictly diagonally dominant matrix, then we give some new results for the criteria of generalized strictly diagonally dominant matrix, finally, we show the validity of these conclusions.

在第一章中，首先引述了α-对角占优矩阵的性质及已有的一些判定条件，给出了判定广义严格对角占优矩阵的几个新的结论，最后说明了这些结论的有效性。

Dominant industry concept is one of core categories with dominant industry academic choice, also be the theoretical foundation of strategy of dominant estate development.

主导产业概念是主导产业选择理论的核心范畴之一，也是主导产业发展战略的理论基础。

This research is to discuss the different effects dominant legs and non-dominant legs cause on static balance, ground reaction and speed by the following seven evaluation methods of dominant legs: ball-kick, step-up, hop-for-distance, step-forward, balance-recovery, fencing in epee, and individual preference.

摘要本研究的目的在利用七种惯用脚评定方式(踢球、登阶、跳远、往前踩步、恢复平衡、锐剑防卫和个人喜好等七种)，分别探讨惯用脚和非惯用脚在静态平衡能力、对地反作用力和速度之差异性，并发现六种评定方式的信度和七种惯用脚评定方式相互之间的差异性。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。