地线

地线没有接上。

The earth wire was not connected .

UPS的地线必须与有效的接地系统连接。

The earth wire of the UPS must then be connected to an efficient earth system .

可能关心的，看来只是某些公式是用大地线及其方位角来推导的。

It seems only to be of possible interest in that some computation formulae are deduced in terms of the geodesic and its azimuth .

基于levelset方法的点采样曲面测地线计算及区域分解

Geodesic Path Computation and Region Decomposition of Point-Based Surface Based on Level Set Method

压力容器封头非测地线缠绕的CAD

A CAD program for non-geodesic winding on the mandrels of the pressure vessel

利用零线&地线实现高速PLC家庭网络通信

Use Null-Earth Line Implement High Speed PLC Home Networks

SOC设计中的浮动压焊块电源/地线网络设计和优化

Design and Optimization of Floating PAD in Power / Ground Network for SOC

本文研究了次黎曼流形（M，D，g）上的测地线，这里M（？）

In this paper we study the geodesics in sub-Riemannian manifold ( M , D , g ) , where M (?)

（Ω，A＿（ab））场论中测地线的进动

Geodesic Precession in the (Ω, A_ ( ab )) - Field Theory

基于WLAN的变电站地线监测系统

Monitoring System of Substation Grounded Line Based on WLAN

然后，本文介绍了机翼实现稳定FW的平衡条件，机翼中间段采用测地线FW，缠绕角为定值αn；

Secondly , the paper introduces the balanceable condition of airfoil steady FW .

一种新型复合光缆架空地线（OPGW）的热稳定性分析及实验

Analysis and Experiment of Thermal Stability for a New Kind of OPGW

OPGW光缆替换原架空地线的施工方法

Construction Method for Replacement of Original Overhead Ground Wire with OPGW Cable

大跨越工程中使用光纤复合地线（OPGW）的研究

Study on applying OPGW ( Optical Ground Wire ) in river-crossing project

对耦合干扰采用印刷电路板PCB（printedcircuitboard）设计时将易耦合干扰的线路两边用地线包围等措施；

Both sides of the lines susceptible to the coupling interference are surrounded by ground wires in printed circuit board design to deal with the coupling interference .

旧地线更换OPGW施工

Construction of Replacement of Old Ground Wire with OPGW

光纤复合架空地线（OPGW）的型谱分析

Type spectrums for optical fiber composite overhead ground wires

架空地线复合光缆（OPGW）是当前电力系统中主要的通信通道。

OPGW is the main communication channel in the current electric power system .

关于光纤复合架空地线光缆OPGW雷击断股的一些考虑

Considerations about Lightning Stroke to Break Strand of OPGW

通过计算表明，水平埋设LCP长效地线产生的接地电阻最小。

Calculation shows that burying LCP horizontally can produce the least ground brush .

FRP球容器扩（缩）孔非测地线FW运动分析

Motile Analyse for Non - Geodesic FW on FRP Ball Container when Expand ( Contract ) Hole

具非负Ricci曲率流形上的无共轭点测地线

The Geodesics without Conjugate Points on the Manifold with Nonnegative Ricci Curvature

以光纤复合架空地线（OPGW）为代表的长途电力架空光缆光通信传输得到了长足发展。

The long-haul electric aerial optical cable optical transmission represented by OPGW has got tremendous development .

25t焊接变位机焊接地线导电装置改造

Rebuilt conduction device by welding earth wine of 25 tons positioner

OPGW复合地线光缆短路电流计算分析

Short-circuit Current Analysis for OPGW

Finsler流形中测地线与全测地子流形的几个性质

On some properties of geodesic and totally geodesic submanifold in Finsler manifold

基于Dijkstra距离剪枝的测地线求解算法

Dijkstra-based Pruning Geodesic Algorithm

架空地线复合光缆OPGW的测试

Test on Overhead OPGW

这种趋势导致电源/地线网（P/G网）上产生电压降（IR-drop）。

This trend leads to a voltage drop on the Power / Ground network , commonly referred to as the IR-drop .

由于地线复合光缆（OPGW）的高可靠性及适用性，目前已被电力系统广泛采用。

OPGW optic cables have been used in many electric power enterprises due to their better reliability and application .