Machining of PCB (printed circuit board) is a typical process of two dimensional multi hole.
印刷电路板pcb的加工是二维多孔数控钻的典型。
The holes of inclined multi hole wall have a strong effect on the heat transfer intensification around the hole.
多斜孔壁上的倾斜小孔抽吸气流对斜孔周围换热增强有明显的效果。
It gives two kinds of new utility engineering concepts called resonance transmission chain and multi hole throttle law of shock absorber.
提出了减振器共振传递链和减振器多孔截流律等工程实用概念。
Conclusion The multi hole electric mosquito repellent mat has larger exposure area, quicker and better effect. It is a promising product.
结论多孔电热片蚊香药液挥散面积大，见效快，药效高，具有开发应用前景。
In the computations of 3d VLSI parasitic interconnect capacitance, it is very difficult to partition the boundary elements on a multi hole surface.
在3dVL SI互连寄生电容的边界元素法计算中，多孔平面的边界元划分是十分困难的问题。
However, the radial penetration distance of umbrella spray was much shorter than that of multi hole spray and the umbrella spray Angle decreased rapidly in the early stage of spray development.
伞形喷雾径向贯穿距离远小于多孔喷雾，喷雾锥角在喷雾早期急剧减小。
Holes machining Path Planning is significant to improve the machining efficiency and quality of multi-hole parts.
孔群加工路径规划对于提高多孔类零件的加工效率和质量具有重要意义。
Removed from the circuit board through-hole components via multi pin component and the large heat capacity is quite troublesome, such as transformer, connector.
从电路板上拆除多引脚的通孔元件和大热容量的通孔元件比较麻烦，比如变压器、接插件。
The reservoir space has the multi - origins, by primary blowhole and secondary corrosion hole primarily.
储集空间具有多成因性，以原生气孔和次生溶蚀孔为主。
Methods The air samples collected with multi-hole absorbing tubes were determined by ion chromatography after sampling.
方法以装有酸性溶液的多孔玻板吸收管采样，用离子色谱法测定空气中的氨。
It specializes in producing concrete multi-hole bricks, standard bricks and various ground block bricks etc.
专业生产混凝土多孔砖，标准砖以及各种路面砌块砖等。
The trays in the distillation column were designed with new multi overflow compound slant hole trays commonly used in the recent years.
在此基础上对原有工艺和新工艺精馏塔板进行设计，塔板选用近年来广泛应用的新型多溢流复合斜孔塔板。
The auto reversing universal changeover switch substitute for the button, and one hole substitute for multi-hole.
自动复位万能转换开关取代按钮，一孔取代多孔。
The velocity gradient, especially the perpendicular velocity gradient, leads the measuring error of flow angle with cylindrical probe to be larger than with conical multi-hole probe.
梯度使气流方向测量值向负梯度方向偏转。圆柱探针和锥形多孔探针相比，气流方向测量误差对速度梯度更敏感，纵向梯度对俯仰角测量值的影响尤其大。
This company produces straight-handle twist drill, hard metal multi-aid straight-handle twist drill, metal hole digger , tungsten alloy saw blade, and building drill.
本公司主要生产直柄麻花钻头，硬质合金多用直柄麻花钻，金属开孔器，钨合金锯片以及建工钻的专业生产厂家。
The result shows that the main reasons are high bottom hole temperature, corrosion of drilling tool during storage and drilling process, high value of formation drillability, and multi-fault.
结果表明，井底温度高、钻具存放及钻井过程中的腐蚀和地层可钻性级值高且断层多，是该地区钻具失效的主要原因。
Boundary value problem of a plate with crack and defect such as circular hole is a multi-connected domain problem.
带有裂纹和缺陷孔洞的板的问题是一个多连域的边值问题，这类问题适合用边界元法所具有的高精度特性来求解。
The peg in hole assembly experiment shows that the proposed architecture is practicable and the given assembly tasks can be efficiently finished by applying CORBA and multi agent technology.
轴孔装配作业实验结果表明，本文提出的体系结构是可行的，采用CORBA技术和多智能体技术能有效地实现预定的装配任务。
The pure polymer gel has low mechanical strength, but the new multi-function composite gel has high mechanical strength, which can control the down-hole loss circulation effectively.
纯粹的聚合物凝胶力学强度相对较低，而新型多功能复合凝胶的力学强度相对较高，能有效的解决井下地层漏失。
Floor morphology of un-flat surface type constitute complicated space system by metamorphosis in ways of joint, folding, rupture, topological multi-hole system, and so on.
非平面型楼板其楼板形态经过接合、折叠、断裂、拓扑多孔体等多种方式的蜕变，构成了复杂性的空间系统。
On the premise of considering Pauli exclusion principle strictly, we have obtained an exact general formula of multiparticle and multi-hole state densities for any single-particle Hamiltonian.
在严格考虑泡利不相容原理的前提下，我们导出了任意单粒子哈密顿量的多粒子、多空穴能态密度的精确的、一般的公式。
The vehicle compartment is made by the multi - blocks foaming boards as main material assembling, the shaping process by working procedure is putting, welding, drill hole, riveted joint.
厢式车的车厢是由多块发泡板为主要材料的平板拼装而成，成型过程由拼装、焊接、钻孔、铆接等工序组成。
The paper introduces the design course of the modular machine tool for multi-hole concentration gearbox.
介绍了多孔密集型箱体组合机床的设计过程，实际证明该机床设计严谨规范，又有技术创新，使用效果良好。
Hole punch configuration flexibility to achieve a multi-prupose machine, bending plate feature matches.
打孔冲头可弹性配置，实现一机多用，台面吸气及弯版功能可选配。
The result proves that the efficiency of multi-pin-hole collimator is indeed higher than that of single-pinhole collimator for our hypothetical model.
结果表明，所假设模型基础上，多针孔成像确实在一定程度上要比单针孔成像探测效率高。
Methods:Samples was detected by ion chromatography(IC) after collected with multi-hole Absorbing tubes.
方法：以多孔玻板吸收管采样，离子色谱法测定。
The annular multi-hole radial jets have important effect on combustor liner.
环向径向射流对燃烧室火焰筒内的流场有着重要的影响。
Manufacturing the automobile spoke components is a multi-step stamping forming process, the round-hole flanging often cracks in the last process.
汽车轮辐零件的制作是一个多工步冲压成形过程，在最后一道工序圆孔翻边时经常出现开裂。
As a vertical interconnect channel, through-hole plays an important role in multi-layer PCBs and IC packages.
通孔作为垂直互联的主要实现方式在多层印制电路板和芯片封装中起着至关重要的作用。
Tube sheets of the heat exchangers are the typical multi-hole parts machined by two-dimensional digital control.
换热器管板是典型的二维数控加工多孔零件。
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