19世纪初美国邮政使用了气动管精密系统，但伦敦使用了完全不同的方式，建立了这个小规模的铁路系统，只能用于包裹运输使用。
The USPS used an elaborate system ofpneumatic tubes during the early 19th century, but London took anentirely different approach and built this scaled-down railroad systemto be used only for parcels.
其中一场筹款会将于6月17日在可口可乐中国总裁布鲁克斯位于北京的家中举行。另一场19日在上海进行，将由生产精密器件的美国睿固公司高管霍恩宾主持。
One appearance will be at the Beijing home of David Brooks, a Coca Cola executive, on June 17, and the other will be in Shanghai hosted by Ted Hornbein, an executive of Richco, on June 19.
我们现正制作加工部件，数控精密加工，包括车轴，管，法兰等。
We are producing machining parts, CNC Precision machining, covering axles, tubes, flanges and others.
与号角连接的高频驱动单元是一个频响平滑宽广的2“侯管(2.5”音圈振膜)的钕磁钢精密高频压缩驱动器。
Connected with the high-frequency horn driver is a smooth and wide frequency response 2 "Hou tube (2.5" voice coil diaphragm) neodymium magnet compression driver high frequency precision.
主营：精密钢管、精密光亮管、精密无缝钢管。
Main products: precision steel tube, precision bright tube, precision seamless steel pipe.
该系统为系统深入地研究管轴压精密成形过程中无模约束自由变形机理和成形规律提供了有效的手段。
It provides an effective approach to further and systematical study of free deformation mechanism and law in tube axial compressive precision forming process.
与号角连接的高频驱动单元是一个频响平滑宽广的1“侯管(1.75”音圈振膜)的钕磁钢精密高频压缩驱动器。
Connected with the high-frequency horn driver is a smooth and wide frequency response 1 "Hou tube (1.75" voice coil diaphragm) neodymium magnet compression driver high frequency precision.
精密弹簧（压簧、拉簧、扭簧、异形弹簧及电池弹簧等）、USB不锈钢伸缩发条、铜铁铝铆（窝）钉、爪钉/管珠、玩具车轴。
Precision spring(compression/tension/torsion/special-shape/battery spring), USB stainless clockwork spring, copper, iron and aluminum rivet, nail claw/claw pearl, and toy axle.
先进的IGBT平面元胞设计同二极管精密的寿命控制工程相结合，这样的芯片就具备了崭新的安全工作区。
Together with the advanced planar cell design of the IGBT and the sophisticated lifetime engineering of the diode, this chip set offers an unprecedented safe operating area.
讨论了部分元素在YY2和YY3型横向加热平台石墨管中的原子化行为，考察了元素的灵敏度、精密度、准确度。
The atomization behavior of eight typical elements in YY2 and YY3 transverse heated Platform graphite tube was discussed. We tested sensitivity, precision and accuracy with elements.
采用大肚移液管，将标准溶液配制成整数级别的贮备液、中间液、使用液时，利用工作曲线计算测定值需要引入校正系数，利用该方法可简化操作，减少误差提高实验准确度、精密度。
The correction coefficient needs to be adopted to calculate the determinated value of work curve, it simplifies the operation, reduces error and enhances the accuracy and precision.
为了观察由板流引起的灯丝温度下降现象，利用红外测温仪对理想二极管灯丝温度作了精密测量。
In order to observe the phenomenon of the filament temperature drop caused by the board-current, the ideal diode filament temperature was detected precisely with an infrared thermometer.
根据精密光学编码器的性能要求，设计和制造了一种具有16个像元的专用的自扫描光电二极管阵列(SSPA)。
Based on the property of the precision rotary encoder, the 16 elements, Special Self Scanning Photodiode Array (SSPA) has been designed and fabricated.
机械扩径是制造管筒形零件的一种精密成形方法。
Mechanical Expanding is one of the finishing processes in cylindrical part forming.
这种独特的专利管技术集成有提高知名度，机动性和精密小型微调头。
This unique and patented tube technology integrates a miniature trimming head for increased visibility, maneuverability and precision.
镀铜外管、碳钢内衬管、精密加工的密封垫表面以及全扩展的管深度，保证了高效和稳定的性能。
Combined with copper outer tubes, carbon steel inner tubes, precision machined gasket surfaces, and fully expanded tube depth, this design assures efficient, dependable performance.
建立了精密播种机接输种管后田间植株分布的动态模型。
A dynamic field plant distribution model with the seed drop tube is established in this paper.
花键管冷滚轧精密成形过程不同于花键轴类零件，其坯料金属变形量大，成形过程较为复杂。
The spline tube differs greatly from the spline shaft parts in the cold roll forming process, which has a complex process with large blank deforming quantity.
23晶体管封装自动键合机是高速、高精度机电一体化精密设备。
The auto Die Bonder for SOT - 23 transistor is a high - speed, high - precision, machinery electronics integrated equipment.
方法：选择牙根分叉较大的磨牙残冠残根，经完善根管充填后，制作分体栓道式铸造桩核，然后精密铸造金属全冠修复。
Methods: The residual crown and root of large furcation molars by full root-fill were chosen. Then casting anatomy bolt post-core molars are restored with finely casting full crowns.
精密的机械加工使管割器快速平稳的工作。
Precision machining provides the quickest and smoothest action.
我们专业生产和销售冷轧精密带钢，光亮带钢和黑带钢，烤蓝丝带，和薄壁管。
We specialize in manufacturing and selling cold-rolled precision strip steel, bright strip steel and black strip steel, grilled blue ribbon, and thin-walled tube.
对圆角模管轴压成形的应用表明该方法是可靠实用的，为实现管轴压精密成形工艺参数的合理选取提供了方法和依据。
Used in the forming process under fillet die the result shows that the method proposed is reliable and practical, and can serve as a significant guide to the design and optimization of the process.
走马锭的组成部分：内芯管、定位肖、张力弹簧等所有核心配件均经过特殊超精密处理；
The gallop's structure: core pipe, located belt, strain spring. Exc. All the fitting are processed specially.
直接采用两支进口精密内径玻璃管吸附柱(标准壁玻璃管吸附柱不再配)，更方便用户使用。
In two imported directly by precision inner diameter glass tube adsorption column (standard wall glass tube adsorption column is no longer supported), more user-friendly.
公司拥有精密焊管流水线两条，产品规格齐全，生产设备先进，检测手段齐全。
The company has a precision welded two lines, product specifications, advanced production equipment, testing means complete.
结论CBCT影像精密度高，可从三维角度分析根管，在根管治疗中诊断治疗下颌第二磨牙C型根管具有临床指导意义。
Conclusions CBCT can analyze the configuration of root canals in a three-dimensional view, which is of prime importance in the diagnosis and treatment of C-shaped canals of mandibular second molars.
主要产品有高精度冷拔油缸、高强度精密冷拔油缸筒、精密珩磨管、液压油缸总成。
The main products are high precision cold-drawn fuel tank, high strength precision cold drawn cylinder tube, precision honing tubes, hydraulic cylinder assembly.
公司现有精密数控机床100多台、仪表车床300多台、进口扣压设备及高效弯 管设备数台；
The company has machine tool of rigid numerical control equipment of burke of 300 much stage, entrances and equipment of efficient bent housing count lathe of 100 much stage, appearance stage;
公司现有精密数控机床100多台、仪表车床300多台、进口扣压设备及高效弯 管设备数台；
The company has machine tool of rigid numerical control equipment of burke of 300 much stage, entrances and equipment of efficient bent housing count lathe of 100 much stage, appearance stage;
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