检漏孔中心线应对两相邻螺柱通孔跨中。
The leak detection hole axis should pass the middle of two neighboring studs clearance holes.
每一档数字都是比前档减少一半的通孔大小。
Each aperture size (referred to as a stop) is marked with a corresponding number that represents half the light of the previous stop.
标准表面贴装技术或通孔技术提供足够的性能。
Standard surface-mount technology or through-hole techniques provide adequate performance.
传统的通孔元件的焊接采用波峰焊或手工焊接。
Through hole components welding using traditional manual welding or soldering.
在每个石墨列有一个通孔，其中一个技术通道上。
In each graphite column there is a through hole in which a technological channel is placed.
在玻璃片上制作精确尺寸的45通孔，并非易事。
It's very difficult to make a hole on the wafer with a 45-degree Angle exactly.
通孔盘状及平面阵列陶瓷多层电容器焊料所含的铅。
Lead in solders for the soldering to machined through hole discoidal and planar array ceramic multilayer capacitors.
通孔的正视图。
盲孔或通孔的属化制程也是直接用电镀的方式完成。
The matellization process of blind via or though hole is also achieved by means of copper electroplating.
采用喷流焊的方法拆除这些通孔元件可以避免这些问题。
Using the method of jet welding dismantling these through-hole components to avoid these problems.
介绍了通孔回流焊的概念、特点、分类和使用工艺要点。
The things of through-hole reflow's concept, characteristics, division and technical gist are described in this paper.
网印：在板两面完全涂覆阻焊油墨，包括导通孔、焊盘。
Screen Print: Solder mask coating will cover completely the panel holes, pads and traces, on both sides.
此研究对高速数字设计者深入理解导通孔设计有一定意义。
The study allows high-speed digital designers to have a more indepth assessment of via design.
主轴中有一个贯穿全长的通孔，长棒料可以通过该孔送料。
A longitudinal hole extends through the spindle so that long bar stock can be fed through it.
概述当今的挑战，以及这些集成和硅通孔技术的未来趋势。
This article will review today's challenges, along with such future trends as integration and through-silicon via(TSV) technologies.
所述第二端包括端壁，所述端壁中包括与所述通道连通的通孔。
The second end includes an end wall including a hole therein communicating with the passage.
分析了无通孔接地板对共面波导(CPW)至微带转换过渡的影响。
The transition effect of the via-free transition from coplanar waveguide (CPW) to microstrip is analyzed.
它由气动活塞式执行机构和O型球阀组成，阀芯采用圆柱形通孔球体。
It consists of pneumatic piston actuator and the composition of O-type ball valve, valve core sphere using cylindrical hole.
轴承圈通孔使轴承特殊的设计可能使传动装置来驱动有轴承支持的结构。
Through-holes in the bearing rings make it possible to bolt the bearings to the lower and upper structure.
是否通过切片检验pth与小导通孔孔壁状况，并有相应的改善对策跟踪？
Is PTH and small via hole wall quality checked by cross-section and followed by a closed loop corrective action?
波浪线不应画在通孔、通槽内或画在轮廓线外，因为这些地方没有断裂痕迹。
Waved lines can't be drawn in holes, grooves or outside the outlines, because there are no broken trails.
四通孔布线算法用于实际MCM布线时，需要解决最大加权不相交匹配问题。
For the Four Via routing algorithm used in MCM routing, the maximum weighted non crossing match problem should be solved.
通孔拐角附近是应力应变的集中区，沿界面至焊盘外缘，应力应变逐渐降低。
The stress-strain concentration is detected at the corner of Cu pad, the lower stress for the outer of Cu pad.
珍珠翻转180度以后，向电机方向扳动1手柄，再次实施打孔，通孔即完成。
After pearl rotates for 180 o, pull (1) hand towards motor, then begin to drill hole until the pearl is holed through.
本文对空调器印刷电路板(PCB)通孔插装形式无铅焊点的热疲劳寿命进行了研究。
Thermal fatigue life of lead-free solder joint of Air-conditioner PCB (Printed Circuit Board) under the form of THT (Through Hole Technology) is studied.
实验结果表明，通孔泡沫铝有明显应变率效应，随应变率上升，泡沫铝流动应力提高。
Experimental results show that the flow stresses of the aluminum foams increase with increasing strain rate, demonstrating a distinct strain rate effect in the open-cell aluminum foams.
它具有相同的旋转90度动作，不同的是旋塞体是球体，有圆形通孔或通道通过其轴线。
It has the same revolving 90 degrees movements, what is different is the cock body is the spheroid, has the circular through hole or the channel passes its spool thread.
HDI材料技术、细间距电路形成和微导通孔形成的加工技术支持了积层多层板的开发。
This development of build up-type multilayer PWB is supported by HDI materials' technology, as well as processing technology for fine-pitch circuit formation and fine-via formation.
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。
Removed from the circuit board through-hole components via multi pin component and the large heat capacity is quite troublesome, such as transformer, connector.
将电路板放置在焊台上，针对需要焊接的通孔元件管腿，选择合适的喷锡口，启动波峰焊接。
The circuit board is placed in the welding stage, the pins through hole components welding, choose appropriate spray tin, soldering start.
应用推荐