查询词典 PCB

NC Drill: Numeric Control drill machine used to drill holes at exact locations of a PCB specified in NC Drill File.

数控钻孔：使用数控钻机和数控钻文件在 PCB 的准确位置钻孔。

Business Scope: 1, various types of headsets: headset after headset linked, linked ear headphones, headphones and other dedicated Internet bar; 2, various types of earplugs: MP3/MP4 earphone, recorder / repeat machine earplugs, ear plugs, such as radio; 3, various types of communications headsets: cell phone hands-free headset, headset walkie-talkie, etc.; 4, various types of special headphones: aviation headset, video game consoles with headphones, headphones for simultaneous interpretation, voice headsets and so on; 5, various types of microphones: a portable microphone , hand-held microphone, desktop microphone, etc.; 6, various types of headphones and microphone accessories: headphones finished wire, ear shell / shell microphone, speakers / potentiometers, PCB board, etc.; 7, various types of headphones and microphone processing business , to undertake OEM / ODM orders; 8, various connectors of the processing operations, to undertake OEM / ODM single.

业务范围： 1、各类耳机：头戴式耳机、后挂式耳机、耳挂式耳机、网吧专用耳机等； 2、各类耳塞：MP3/MP4耳塞、录音机/复读机耳塞、收音机耳塞等； 3、各类通讯耳机：手机免提耳机、对讲机耳机等； 4、各类特种耳机：航空耳机、游戏机用耳机、同声传译耳机、语音耳机等； 5、各类麦克风：便携式麦克风、手握式麦克风、台式麦克风等； 6、各类耳机及麦克风配件：耳机成品线材、耳壳/咪壳、喇叭/电位器、PCB板等； 7、各类耳机及麦克风的加工业务，承接OEM/ODM单； 8、各类接插件的加工业务，承接OEM/ODM单。

This invention discloses a duplexer and a multiplexer of the communication system and a method to realize them on a PCB circuit, which applies a 3db bridge and a low pass filter to constitute a hopstreet duplexer without waste band channels, in which, the signals are shunted and combined by the design of the circuit structure and power distribution of the 3-db bridge and phase offset function, the band filter of the low pass filter and the reflection function of a stopband to make up of a costless duplexer in theory to merge the two channels of different frequencies and reduce loss to increase volume and working bandwidth, then a multiplexer is formed by cascading multiple duplexers.

本发明涉及通信设备，公开了一种通信系统双工器和多工器以及双工多工方法，使得双工器和多工器能够在PCB电路上实现，并且体积小、损耗小、成本低、容量大。本发明中，采用三分贝电桥、低通滤波器构成无损耗频带信道合路的双工器，其中通过电路结构的设计并利用三分贝电桥的功率分配和相位偏移功能将各路信号进行分路和组合，利用低通滤波器的频带滤波和阻带反射功能联合三分贝电桥构造一个理论无耗的双工器，使两路不同频率的信道合路，降低的损耗、提高容量和工作带宽。通过多个上述双工器的级联构成多工器。

Our main product have: IC plastic plane, IC shear pin machine, electromagnetic, pneumatic machine parts; automatic bulk with shear pin loaded machine parts; automatic bulk with loaded machine parts; V-CUT folding machine; automatic feed plate; hand solder immersion heaters; PCB trolley, Hand Solder Products Solder series sets.

我司主要产品有：IC整型机，IC切脚机，电磁式，气动式零件成型机；全自动散装、带装零件剪脚机；全自动散装、带装零件成型机；V-CUT折板机；自动送料盘；手浸式焊锡炉；PCB台车，手推防焊套等系列防焊产品。

In the circuit board manufacturing industry, can be used for electronic protection paste, especially for SMT temperature protection, electronic switches, PCB board finger protection, electronic transformers, relays and other high temperature resistant and moisture protection needs of electronic components.

在线路板制造行业中可用于电子保护粘贴，特别适用于SMT耐温保护、电子开关、PCB板金手指保护、电子变压器、继电器等各种需耐高温及防潮保护的电子元器件。

In multiplayer PCB use one layer as power ground plane and have a control circuit ground, to which all signals are referenced.

在多功能单放机的PCB用途一层数当力量地面飞机和有被研的一条控制电路，所有信号参考。

In the EMC aspect, from designs of earthing, ground system, shield, filter, PCB, software design, and so on, the paper systematically improves the equipment the whole EMC level, also only then like this, can the very good EMC solution be solved, and made EMC test pass through the severe examination rank.

在电磁兼容方面，论文从接地和地系统设计、屏蔽、滤波以及PCB和软件设计等多方面入手，系统地改善设备的整体EMC水平，也只有这样，才能很好的解决EMC问题，使EMC试验通过严酷的检测等级。

Company's products are: soft plate rack, stainless steel products, titanium products, Teflon coating, transmission gears, roller kits, heaters, high temperature such as heating coil surrounding PCB auxiliary supplies .

公司产品有：软板挂具，不锈钢制品，钛制品，铁氟龙喷涂，传动齿轮，包胶辊，加热器，耐高温加热圈等各类PCB周边辅助耗材。

ALTIUM'S UNIQUE ECAD-MCAD INTEGRATION ENVIRONMENT* allows designers the opportunity to import whole design concepts and complete their PCB board shape and height/volume restrictions with complete confidence.

在ALTIUM独特的ECAD-MCAD一体化集成设计环境中，用户可以导入完整的设计概念，可靠地完成PCB板框外形和高度限制区域的定义。

ALTIUM独特的ECAD-MCAD一体化集成设计环境* allows designers the opportunity to import whole design concepts and complete their PCB board shape and height/volume restrictions with complete confidence.

在ALTIUM独特的ECAD-MCAD一体化集成设计环境中，用户可以导入完整的设计概念，可靠地完成PCB板框外形和高度限制区域的定义。

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。