Experimental research on resistance properties for changeable angle Y-shaped branch pipe in pneumatic conveying 变角度Y形分支管气力输送流动阻力特性研究
Well intervals where lift pumps can be located in highly deviated wells include vertical interval, deflecting interval, angle maintaining interval and branch rat hole. 大斜度井可供选择的下泵位置有在垂直段安装,在造斜段安装、在稳斜段安装、在分支鼠洞井眼安装。
From this angle for, civil administration branch gives out what have vigilant interest quite to remind right now, much rarer dot is malapropos. 从这个角度来说,民政部门此时发出颇具警惕意味的提醒,多少有点不合时宜。
The upper angle between an axis and an offshoot such as a branch or leafstalk. 象树枝或叶柄的分支与轴之间的上角。
The negative less-parent heterosis of the angle between stem and primary branch was highly significant in F_1 and F_2 generation (-20.6% and-17.7%). These results showed that only one compact parent was necessary to get compact F_1 hybrid. 分枝夹角的F1和F2代负向超亲优势达极显著水平(-20.6%和-17.7%),表明配制紧凑型F1代杂交种仅需一个紧凑型亲本。
The angle between branch and shaft of rectrices is larger than that of primaries, which is help to reducing resistance. 尾羽羽枝跟羽轴之间角度比飞羽大,具有减阻作用。
This article reflects the changes of Sino-American industry division structure and the industry competitive ability systematically from the angle of aggregate industry level, the branch industry level as well as the type quantification analysis of intra-industry trade. 本文通过对中美产业内贸易总体水平、分行业水平以及产业内贸易类型的量化分析,比较系统地反映了中美产业分工结构和产业竞争力的变化。
Angle, Lateral circumflex femoral artery and ascending branch were 133? 角;旋股外侧动脉与其升支间约呈133。
Rotation angle symbol method to identify circuit and branch of spherical four bar is presented in this paper. Finally, the method about application to spatial first group mechanism is elaborated. 最后由空间第一类机构与球面四杆机构的等效性,阐述了将此识别方法应用于第一组空间机构的方法。
Crown profile models, including branch diameter, branch length, angle of origin, and branch chord length, were developed from branch attributes and tree variables. 基于枝条着枝深度(DINC)和林木变量所建立的树冠形状模型包括:基径、枝长、着枝角度和弦长等预估模型。
In this paper, the key techniques such as setting fault initial angle, selecting calculation step, dealing with fault branch and building vast transient data one time, are discussed. 本文对故障起始角的设定、计算步长的选择、故障处理以及大量暂态仿真的实现等关键技术进行了探讨。
If the cross section area of the two branching ducts are different, the Included angle on the smaller branch duct against the extended center line is usually bigger. 若分枝管的截面积大小不同,则细支管与母管中心延长线间的夹角较大;
The design of the level flue of the 1# and 2# are different greatly, The distribute of the negative pressure of the level flue is balanced by adjusting the opening angle of the papilionaceous valve of the branch of smoking pipe; 一、二期水平烟道设计有很大不同,调节支烟管蝶阀的开启角度来平衡水平烟道负压分配;
Finally, the effect of spin coating polymer film error to the attenuator was simulated. Three kinds of errors were considered, which were film thickness, waveguides width and angle of Y branch. 最后,考虑了旋涂法成膜及光刻对器件形成造成的宏观误差,模拟了薄膜厚度,波导宽度和Y分支角钝角给器件性能带来的影响。
From an angle of the modern systematic science, Comparative Literature should belong to a special branch of the literature studies in aggregate name of a science. 在现代科学系统理念的层面上,恰切的认定应当是:比较文学是具有集合性质的科学&文学研究的特殊分支。
The angle between the anterior branch of Lumbar nerve root and midline sagittal plane is 18.9 °~ 39.2 °. 腰神经前支出椎间孔后与矢状面夹角为18.9°~39.2°;
On the other hand, the grey relatedness degrees among the number, angle and diameter of the second grade branch system are higher, which shows, to some extent, that the modules change similarly and they reflect the other factors consistently. 另一方面,二级分枝构件系统内的分枝数、分枝角度、径粗间表现出了一定的高相关性,说明它们的变化特征比较相似,受其它因子作用的反映具较高的一致性。
Calculation on the skew angle of oblique branch arm of the arc gate 弧形闸门斜支臂偏斜角的分析计算
Both the branch length and the intersection angle between branches influence the distribution of the branch productivity index. 各分支的长度和夹角均影响分支水平井特殊采油指数的分布;若以各分支特殊采油指数均等为原则,需要设计合适的分支长度和分支间夹角,以便获得均衡的分支井特殊采油指数。
By adopting the partial coordinates system and the turning angle of globe hinge the position of moving platform was described, and the influence on working space of parallel robot affected by factors of turning angle of motion pair, rod length and interference of branch chain etc. 选用局部坐标系和球铰的转角描述了动平台的位置,分析了运动副转角、杆长、支链干涉等因素对并联机器人工作空间的影响。
Results: Fractures in body, angle and ascending branch of mandible could be showed fine by all these imaging methods. 3D-CT was better than 2D-CT and conventional X-ray plain film in the diagnosis of fractures in condyle and coronoid process. 结果:对于下颌骨体部、角部和升支骨折,3种影像学都能很好的显示,对于髁状突和喙突骨折,三维CT检查优于常规X线和二维CT;
( 6) The branch angle is decreased with the increase of branch grades. In the same layer, the branch angle and its coefficient of variation of high-yielding tea plants are bigger than of low-yielding tea plants. 分枝角度随分枝级数增加而变小,同级分枝角度及其变异系数,高产茶树比低产茶树大。
In same variety, there is significant difference among branch angle, branch length, branch thickness and node length. 同一品种的各分枝长度间、分枝角度间、分枝粗间、节间长间均存在显著差异。
In the market, the main contract incentive Angle analysis from two aspects: research and development department and the middle branch will take integration enterprise form, take integration enterprise form to our R& D department of internal incentive contracts. 在市场合约激励角度,主要从两个方面进行分析,即:研发部门和中间部门是否采取一体化企业形式,采取一体化企业形式内部对研发部门的合约激励。
In the plot of vegetation removal, the high individual density caused the higher bifurcation ratio, the larger branch angle to horizon, longer branch length and narrow crown, which benefited growing fast and increasing competitiveness for light. 在清除植被的干扰样地中,由于高的植株密度使得树种形成较高的分枝率、大枝倾角、长枝条、窄小的树冠,以快速生长而摆脱受压状态。
The rhizome branch angle has no notable difference in different habits. It has relationship to number of branch. 根茎分枝角度在不同生境中无显著性差异,但跟分枝数有关系。
This method chooses the magnitude and phase angle of the branch current as the state variables. The measurements include real and reactive branch power measurements, current magnitude measurements, power measurements and voltage magnitude measurements. In the algorithm measurements for DGs are included and utilized. 算法选取了支路电流的幅值和相角作为状态变量,以支路有功无功、电流幅值、节点电压幅值以及节点负荷有功无功为量测量,分布式电源的量测也被作为量测量并入其中。
With the increasing of horizontal wells, high angle wells, branch wells and cluster wells, dip correction become the bottleneck of the correct oil and gas evaluation. 随着水平井、大斜度井、分支井和丛式井的增加,斜井校正成为正确油气评价的瓶颈。