地线

The design and simulation of the power/ground net is essential functions of the electronic design automation tools for high speed integrated circuits.

电源/地线网的设计和仿真是集成电路自动化设计工具中的重要功能。

What is Ground Noise?

地线噪声是什么？

Optimum design ; power/ground lines ; reliability ; noise constraints

优化设计；电源线/地线；可靠性；噪声约束

This paper analyzes some practical cases of mal-operation of ground protection of power plant auxiliary equipment and then points out that the main reason resulting in mal-operation is incorrect grounding of shield cable and ground wire.

叙述了大型发电厂10 kV及以下厂用电系统中性点接地的几种方式，分析了作用于跳闸的接地保护在运行中几次误动的原因，同时，强调了零序电流互感器及电缆接地线在安装时应注意的事项。

On the hardware electric circuit, uses MAX232 torealize PC machine and between the monolithic integrated circuit leveltransformation, uses the simple 3 systems connection methodrealization correspondence, soon PC machine and the monolithicintegrated circuit transmission data end and the receive data endcross connection, two groundings direct are connected; In the softwareprogramming, on PC machine was uses the existing string mouth to debugassistant software, the monolithic integrated circuit carries on theprogramming using the assembly language.

在硬件电路上，采用MAX232实现PC机与单片机之间的电平转换，采用简单的3线制连接方法实现通信，即将PC机和单片机的发送数据端与接收数据端交叉连接，两者的地线直接相连；在软件编程上，PC机上是采用了现有的串口调试助手软件，单片机则利用汇编语言进行编程。

The products are widely used in coaxial cables, RF cable, high-frequency signal transmission cable, power cable grounding line, shielding lines and telephone lines, control cables, and other fields in the communications, military, aerospace, computers, electronic components such as There is also broad field of science and technology.

本产品广泛应用于同轴电缆、射频电缆、高频信号传输电缆、电力电缆的接地线、屏蔽线及电话线、控制电缆等领域，在通信、军工、航空航天、电子计算机、电子元件等高科技领域也广泛存在。

I made a cardboard for it, hanging it on the wall with a piece of iron stick inserted into the earth, with a piece of wire leading to the speaker.

我用纸板糊了个匣子，挂在墙上，再用一铁条插进地下当作地线。

To enable the reliable operation of the control system, the centers will be linked to more than 90 substations and power stations by over 1300 km of OPGW, ABB FOX 515 multiplexers, ABB ETL 600 Digital Power Line Carrier and radio communications.

为确保控制系统的可靠运行，这些中心将通过1300多千米的光纤复合地线、ABB FOX515多路器、ABB ETL 600 数字电力线载波机及无线电通讯，链接到90多个变电站和发电站。

To enable the reliable operation of the control system, the centers will be linked to more than 90 substations and power stations by over 1300 km of OPGW, ABB FOX 515 multiplexers, ABB ETL 600 Digital Power Line Carrier and radio communications.

使控制系统操作更安全，这些中心将通过1300 km的光纤复合地线、ABB FOX515多路器、ABB数字式电力线载波机和无线通信设备与90多个分站所连接。

Truckers flock like migrating geese to the Mid-America Trucking Show," says Sandi Soendker of the trucking magazine Land Line."They don't even know it, but the urge to gather here is hardwired in their brains.

卡车司机们像迁徙的候鸟一般汇聚到美国中部卡车展上来，&卡车杂志《陆地线》的桑迪·索恩德克说，&他们甚至都不知道这个展览的名称，不过要来这里的那种强烈欲望已经在他们脑海中扎根。

I bought a nice wrist watch as a surprise for my wife's birthday.

我买了一个漂亮的手表想要给我妻子的生日一个惊喜。

We don t expect students to be sponges. You can t expect to absorb everything and not have any questions to ask.

我们并不期待我们的学生是一块海绵，你没可能接收所有的东西而不提出任何问题。