On the basis of experience with measurement this paper discusses the concentricity and roundness error measurements by three coordinates measuring machine from the viewpoint of the author.

Preliminary Research on Concentricity and Roundness Error Measurements by Three-coordinates Measuring Machine

三坐标测量机测量圆度同轴度误差初探

This kind of bearing outer ring raceway is spherical shape, so the self-aligning good performance, to compensate concentricity error.

该类轴承外圈滚道是球面形，故其调心性能良好，能补偿同轴度误差。

Concentricity error is positioning error, The tolerance zone is a reference axis for axis, with tolerance values for diameter cylinder.

同轴度误差属于定位误差，其公差带是以基准轴线为轴线、以公差值为直径的圆柱面区域。

The construction of concentric bi-directional valve overcomes the disadvantage of easy to connect between two parallel check valves.

同心双向阀结构克服了传统的单向阀并联结构两阀间易连通的缺点。

Care must be taken during installation so that the Flow Measurement Device fitting is concentric with the center line of the pipeline in which it is installed.

在安装期间必须小心，使得流量测量装置的中心与所安装的管线中心对齐。

The three channel noncontacting rotary joint is a concentric three coaxial line configuration, which forms three transmission channels.

三信道无接触旋转关节是一个同心三同轴线结构，形成三路传输信道。

In this case, which seems to violate the "no shield current" rule for receiver circuits, the concentric cable is not used to shield the center lead; instead, the geometrv produces cancellation.

这个例子看起来违背了上文“屏蔽体一定不能有电流”的准则，但是这里屏蔽电缆并非用来屏蔽芯线，而是通过这种特殊接法抵消干扰。

Synthesis and Characterization of the Concentric Cable of Cobalt Nanowires ( nanotubes) Encapsulated in Carbon Nanotubes

C纳米管包裹的金属钴纳米线（管）同心电缆的制备与表征

Improving Liquid-Solid Distribution Uniformity by Using Concentric Tube

利用套管结构实现液固均匀分布

Study on vibration character for a cantilever tube in water confined by concentric tube

悬臂管在同心套管包围的水中振动特性的研究

Due to the sample being introduced as an aerosol through the innermost concentric tube of the plasma source at a frequency of about 27 MHz, the skin effect occurs.

由于样品以气溶胶的形式通过最中间同心管引入频率为27MHz的等离子光源，出现趋肤效应。

Heat exchangers, other than the double concentric tube type or double tube sheet type, must employ a pressure differential and a means for monitoring the differential.

热交换器（除了双同心管换热器或双管板列管换热器）必须使用压力差，并有方法对压力差进行监控。

The principle is modulating the signals onto the power line using confluence box, transmit through the power line, and read out at the other end of the line by concentrator, restore the information and data.

原理是将汇流箱监测的信息调制到电力线上，通过电力线传导，在线路另一端通过集中器采集信号，还原信息数据，送至监控中心。

The third chapter discusses the design and implementation of the wireless communication between supervisory computer and concentrator and the power line carrier communication between concentrator and single lamp survey control terminal.

第三章详细介绍了监控主机和集中器的无线通信以及集中器和单灯测控终端的电力线载波通信这两级通信机制的具体设计和实现；

In this paper, multiple fault detection of line concentrator time switch in SPC switching system is discussed.

本文研究程控数字电话交换机中用户集中器时分接线器（LTSW）的多故障检测。

A Program Controlled Subscribe Line Concentrator Of Inter& Exchange Function

一种具有内部交换功能的程控用户集中器

This paper presents the system architecture and performances of the 128-line subscriber's line concentrator controlled by the stored program. Some major technical problems encountered in the designing of the system are also described.

本文介绍了128线程控用户集线器的系统结构、性能及研制中的几个主要技术问题。

Applications of Full Duplex Communication in Subscriber Line Concentrator

全双工通信在用户线路集中器中的应用

An Experimental Study of the Resistance Characteristics of a Tower type Fly ash Concentrator

塔型飞灰浓缩器阻力特性的试验研究

An image equation for a solar tower concentrator system

塔式太阳能聚光系统太阳影象方程