测量仪器

The calculations show that the principle formula error have small influence on the aberrations of an optical system, but as the stundard measurement of a refractive index, so great principle formula error is not allowable.

这样，虽然仪器本身具有高精度的测试性能，但原理公式误差大大地超过了仪器的测试精度，导致错误的测试结果。因此指出原理公式误差，评价其大小，重新推导测量绝对

Integrating the probe and metering circuit minifies the instrument volume. Using a differential structured sensor reduces measure error. And also digital signal is applied to increase the signal transmitting range and to raise anti-jamming ability.

通过测头与测量电路的一体化设计，精缩了仪器体积；采用差动测头结构，减少了由于环境变化引起的测量误差；使用数字信号传输测量结果，增加了信号的传输距离，提高了抗干扰能力。

Aimed at some problems that radial wear quantity measuring accuracy of gun barrel inner bore was low,and the degree of automation was not high,by use of laser un-touched measuring technology,a precision measuring system of gun barrel inner diameter was designed.

针对现有火炮身管内膛径向磨损量检测仪器所存在的测量精度低、自动化程度不高等问题，设计了一套利用激光非接触测量技术对身管内径实现精密测量的系统。

Serein Metrology Co., LTD is a holding company by Hexagon Metrology AB specializing in designing, manufacturing and selling precision coordinates measuring machine, vision measuring machine and height gauge machine, etc.

思瑞测量技术有限公司是由瑞典海克斯康计量技术集团控股的一家从事研发、生产及销售精密坐标测量机，影像测量仪，测高仪等专业计量设备与仪器的合资企业。

However, because the measuring process is influenced by many factors, it is difficult to improve the accuracy of dynamic measurement. It is the focus of the measurers and the designers all through the ages. Thus, the research on dynamic error and accuracy theory is always heavily concerned.

由于动态测量的影响因素较多，如何提高其测量精度，一直是工程测量与仪器设计人员关注的重点，因而，对动态误差与精度理论的研究也历来受到人们的重视。

The traditional measurement methods such as stereoscopic law, Molls stripe law, grating cubic chart law and so on need expensive equipment and well-trained special technical staff, and they have long measurement cycle and low measurement efficiency. These shortcomings make the traditional contact measurement method hinder its wide application.

传统的自由曲面主要采用接触式测量方法，如体视法、莫尔条纹法、光栅立体图法等，这些方法需要昂贵的仪器设备和训练有素的专门技术人员，而且测量周期长、效率低，这些缺点使得传统的接触式测量方法的发展受到了限制。

A new arm lever method for measurement of gun tube linearity was set up with description of its measuring principle.

论述了用臂杆法测量火炮身管直线度的原理，提出了为提高测量精度所采取的有效措施；精度分析表明，这种仪器在火炮身管直线度的测量中具有一定应用价值。

This working stability of instrument , performance are good, smaller than 1dB through correcting the error of measuring, it is 40 to measure the range --96dB, can meet general civil need , can apply industrial and mining enterprises , organ school ,etc.

该仪器工作稳定、性能良好，经校正测量误差小于1dB，测量范围为40——96dB，能满足一般民用需要，可广泛应用于工矿企业、机关学校等需要对环境噪声进行测量和控制的场合。

On a grating type gear integrated error measuring equipm ent, this technique employs the three-point method error separation technique fo r separation of the systematic error of the measuring chain of equipment spindle system including measuring worm error, grating transducer error, bearing rota ry error etc.

在一台光栅式齿轮整体误差测量仪上，它用三点法误差分离技术能分离开仪器轴系测量链的系统误差(包括测量蜗杆误差、光栅传感器误差、轴承回转误差等)和被测齿轮的全谐波误差。

The study confirms the coordinates measurement for gear profile and longitudinal and the absolute measurement for pitch on the base of the new type complete loop-locked CNC form gear grinding machine YK73125 and the working principle of side-type tester.

本研究以新型全闭环数控成形砂轮磨齿机YK73125为基础，依据旁置式仪器的工作原理，确定了齿轮的齿形、齿向的坐标测量法及周节的绝对测量法，并在此基础上开发了专用的随机测量系统。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。