查询词典 PCB

Because printed circuit board is developing in the direction of fine line, high density, small aperture and multiplied layers, apart from that the requirement for inner and outer quality of base material is extremely high, more and more rigorous requirements are proposed on manufacturing environment and lustration of process.

针对 PCB 向细线路、高密度、小孔径、多层化的方向发展、除对其基材的内外质量要求极高外，也对制造环境和制程的洁净度提出越来越苛刻的条件。

In the implementation of this system, it gives a complete PBC matched for the function of the system.

在系统的实现中，给出了一个满足系统功能的完整PCB。

In this paper analysis technologies for these failures will be firstly introduced,which includes SEM/EDS,XPS, microsection,t hermal analysis(TGA/DSC/TMA),FT-IR , wetting balance test and so on.

本文首先介绍针对PCB在使用过程中的这些失效的分析技术，包括扫描电镜与能谱、光电子能谱、切片、热分析以及傅立叶红外光谱分析等。

Access multiplexor appli- cations can use the devices across a PCB backplane for point-to-point and lightly loaded multidrop configurations.

接入复用器appli -离子可以使用在印刷电路板的背板的点至点和轻载多点配置的设备。

Chapter 2 gives the structure design of the network sensor node 、 circuit diagram and PCB.

第四章讨论了无线传感器网络的数据链路层的功能，并且指出了存在于无线传感器网络中的通信问题，最后分析无线报警网络在链路层协议的控制下进行网络节点间的通信和网络通信中问题的解决。

But since it was mounted with the PCB outwards, I had no other way of making it safe.

但由于它与印刷电路板向外安装，我并没有使安全的其他方式。

Currently, the digital system is composed of a large amount of highly fine packeted ICs, such as PGAs, BGAs and so on.

如今的数字电子系统，大量地采用了诸如PGA、BGA等高度封装器件，使得PCB上各器件之间的连线间距越来越细密。

If you like to make your own pcb, try the one above.

如果你想使你自己的电路板，上面的一个尝试。

Objective To observe PCB affect the ability of learning and memory in rats.

目的 研究多氯联苯对大鼠学习记忆能力的影响。

The third part of this paper explains how to design the PCB and make signal integrity analysis.

第四部分详细阐述了系统应用程序设计和系统电路调试应用的过程。

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。