要求高精度的

At present the engine bed profession market competition extremely isintense, proposed to the engine bed precision and the efficiency ahigher request, the slotter main body organization design is in theslotter design most important topic.

目前机床行业市场竞争十分激烈，对机床的精度和效率提出了更高的要求，插床主体机构的设计是插床设计中的首要课题。

Reasonable baseline is one of the key matter in the straightness measurement. Two schemes of the measuring basis are advanced in the paper--tensile spring and laser beam, based on the request and character of guide-ways straightness measurement. In early study, we come to the conclusion by theoretical analysis and experiment that the laser beam basis has more advantage in development and accuracy.

合理的直线基准是实现直线度测量的一项关键内容，本文首先针对导轨直线度的测量要求与特点，提出了张丝与准直激光束两个测量基准方案，并在前期研究中通过理论分析与大量的实验对比得出结论：激光束在系统实现及测量精度等方面均具有更高的优越性。

In recent years, people have paid much more attention to the accuracy of flow measurement as technology progresses. The intelligent flow totalizer system in this design is combined with the spindle flowmeter, the embedded system techniques and serial communication techniques.

近年来，伴随着工业生产、医疗卫生等领域的技术进步，人们对流量计量提出了更高的要求，而在全球自然资源供应日趋紧张的今天，提高流量测量精度更具有举足轻重的现实意义。

At present, there are many reports about the coupling of single laser and lens, and the technic also is quite mature. However, because of the precise requests of the manufacture technic and assembly, the technic of shaping for unidimensional linear and two-dimensional planar beams is not mature enough, almost at the researching or experimenting stage.

目前，关于单管激光器与透镜耦合的方式国内外报道很多，技术也比较成熟；但对激光束阵列的一维线阵和二维面阵整形，由于其制作工艺、耦合组装的精度要求很高，国内外还没有十分成熟的工艺，多处于研究实验阶段。

For eliminate redundant stress in spring unit brought by continuously variation of strain,in wind spring device,the adopt spiral output wheel with continuously variant radii was used and the variation of moment can be canceled out by variation of radii,the approximate constant output force can be obtained.

为消除弹簧装置中应力随应变不断变化而产生的多余应力，在卷簧结构中，采用螺旋变径输出轮，用半径的变化抵消力矩的变化，获得近似恒定的输出力。在精度要求不高的场合，采用此方式可形成简便可靠的近似恒力的弹簧装置

With the development of wide band radar technology and the software radio, it is more and more important for an ADC with higher sampling rate and higher precision.

随着宽带、超宽带雷达技术研究的深入和软件无线电技术的发展，对数据采集系统的速度和精度提出了越来越高的要求。

The virtual platform is tested by experiments of measuring artificial defects in the mild steel sheet workpiece. And the results show that its functions, including signal channel controlling, signal collection, magnetical flux density curves and butterfly curve, data accessing and signal quantifying and display, can be realized by using the virtual panels; the quantifying precision of this system is about 85 percent; and the shape inversely calculated is similar to the real shape of the defect.

通过实验测试得到如下结论：对该虚拟仪器面板的操作能够有效地实现通道控制和信号采集、磁通密度曲线及蝶形图的实时绘制、数据的存取以及信号的定量计算和显示等功能；具有较高的检测精度，缺陷智能量化相对误差不超过15%；检测反演所得缺陷形状能够与缺陷的真实外形相符，满足可视化检测要求。

The hot coil box has very high standard for the control. If we have troubles then it is easily to pile steel. The paper designs the speed matching by exact calculate according to the measure result of HMD. We design the control data change automation by intelligence database. So the equipment run normal and the coil shape is good.

热卷箱开卷要求非常严格，控制精度高，稍有问题就导致堆钢，本文正是根据HMD的检测信号结合卷径准确计算来实现开卷臂的正常动作，对于控制参数采用智能自学习库自动调整，保证了设备的正常运行和良好的卷形。

The hot coil box has very high standard for the control. If we have troubles then it is easily to pile steel. The paper designs the speed matching by exact calculate according to the measure result of HMD. We design the control data change automation by intelligence database. So the equipment run normal and the coil shape is good.

摘 要：热卷箱开卷要求非常严格，控制精度高，稍有问题就导致堆钢，本文正是根据HMD的检测信号结合卷径准确计算来实现开卷臂的正常动作，对于控制参数采用智能自学习库自动调整，保证了设备的正常运行和良好的卷形。

With the development of metal casting technology, sand core is playing a more important role in modern casting production.

铸造技术的发展使得砂芯在铸造生产中的作用越来越大，被称为&精确砂型铸造&的组芯造型对砂芯的尺寸精度要求非常高。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。