The distribution characteristics and laws of underground current for a change current system with the opposite direction are indicated in this paper.
本文阐明了反向变分流系统地下电流的分布特点和规律。
Current estimates suggest that half of all the living matter on Earth lives underground, at depths of up to 5km.
现在估计地球上大约一半的生物生活在地下深度约5千米以下的地方。
The fear is that, at current consumption rates, that underground bunker will be empty within 20 years, leaving the earth almost helium-free by the end of the 21st century.
我们担心的是，按照现在的消耗速度，那个地下储存库将在20年内枯竭，而在21世纪末留给地球的将几乎都是游离氦。
And as well, organizations, underground right now, they literally rescue these women out from their current employments.
同时，还有一些地下组织，正在从这个行当中，解救那些妇女。
Current estimates suggest that half of all the living matter on Earth lives underground, at depths of up to 5km.
最近估计表明，地球上的半数生物在深达5千米的地下生活。
Electric current gradient process was a new technique for testing the external coatings of the underground pipelines.
电流梯度法是一种地下管道外防护层检测的新技术。
Stray current in coal mine underground is an important factor caused gas and coal dust explosion, which seriously threatened safety production in mines.
煤矿井下杂散电流是引起瓦斯、煤尘爆炸的一个重要起因，严重威胁到煤矿的安全生产。
Paper sums up various faults occurring in underground power network as a phenomenon of current unsymmetry, by the display of which the protection is thereby activated.
本文将井下供电网路多种故障归结为“电流不对称”现象，以其作为保护动作的反映源。
Applying: broadly used in the outer current cathode protection of the sea oil drilling platform, underground pipe and cable etc.
应用：高硅铸铁阳极广泛应用于海上石油钻井平台，地下管道地下电缆等设施的外加电流的阴极保护。
This article, by analyzing the situation of the current underground measuring network, has proposed a better transforming design of controlling network and introduced some measures in practice.
文章通过对井下测量原有测量控制网现状的分析，优化设计了控制网改造方案，介绍了改造过程中采取的一些对策措施。
The requirements of impressed current anodes for the protection of underground structures were presented in this paper according to the analysis of working conditions.
本文分析了地下结构物外加电流阴极保护用阳极的工况环境条件；
This paper describes the fundamentals and key techniques of an impulse discharge device with high current, which is used in underground oil well for plug releasing and enhancing production efficiency.
本文介绍了利用井下强流脉冲放电技术疏通油井、提高产油率的基本原理及其关键技术，并研制出了一套油井疏通用脉冲大电流放电设备样机。
Capacitivity -Coupled Resistivity (CCR) Method is a new geophysical exploration method, which uses capacitor to supply current to underground and measures coupled electric potential as well.
电容耦合电阻率法（CCR）是一种新颖的物探方法，它利用电容向地下供电，并利用电容来测量地表耦合电位。
Metro stray current causes serious electrochemical corrosion in the metal pipelines, communication cable epidermis and rebars in concrete main structure buried underground nearby metro.
杂散电流对地铁周围的埋地金属管道、通讯电缆外皮以及地铁主体结构钢筋等发生电化学腐蚀，产生严重的危害。
Metro stray current causes serious electrochemical corrosion in metal pipelines, communication cable epidermis and rebars in concrete main structure buried underground nearby metro.
杂散电流对地铁周围的埋地金属管道、通讯电缆外皮以及地铁主体结构钢筋等发生电化学腐蚀，产生严重的危害。
The phase comparison error is the primary factor leading to mistaken action in the selective leakage protective system of underground LV networks based on zero sequence current direction.
在基于零序电流方向原理的矿井低压电网选择性漏电保护中，比相误差是导致保护误动的主要因素。
The electricity character of karst cave has much difference than that of wall rock, so the surveying method of direct current can find out if there be karst cave underground.
由于地下岩溶与周围围岩存在明显的电性差异，可以通过直流电法勘探查明地下是否存在岩溶形态。
The article expounds current situations and effects of combining solution mining (ie underground leaching) with traditional process of overseas underground mines.
阐述了地下采矿的溶浸工艺(简称地浸工艺)与传统工艺在国外的联合应用状况。
Types of technology for underground infiltration system and their current application were introduced, and the domestic project cases were summarized.
介绍了现有的地下渗滤系统工艺类型及其应用现状，并对国内工程实例进行了总结。
Under the terms of the contract, ABB will supply the underwater and underground cables for the high-voltage direct current (HVDC) link.
根据合同条款，ABB将为该高压直流(HVDC)电线提供水下和地下电缆。
There are several alternate means of transmitting electric power, for example, by alternating or direct current, overhead or underground cable, and all over a wide range of voltages.
有多种送电途径可选择，例如由交流或直流，架室线或地下电缆送电并有各种电压等级。
A new method is introduced to determine the current density required for protecting an aged underground pipeline. The field test results show that this method is exact and practical.
研究一种确定旧管道阴极保护电流密度的新方法。现场试验结果表明，运用该方法确定旧管道阴极保护电流密度是准确实用的。
From the experiment result of metal specimens buried in underground, discussing the influence of AC stray current on cathode protection by using galvanic anode method.
根据室外现场埋片试验结果，讨论了杂散电流对牺牲阳极阴极保护性能的影响。
According to current anticorrosion situation of underground gas pipe in our country, improvement measures are brought forward.
根据我国煤气埋地管道的防腐现状，提出了改进措施。
Potentiostat, as the impressed current cathodic protection power, has been widely used in underground metallic pipeline anticorrosion.
恒电位仪作为阴极保护电源，被广泛应用于埋地金属管道的防腐蚀工程中。
Yulongling ground electrode; West-East Gas Pipeline 2; Stray Current; Underground pipeline;
鱼龙岭接地极；西气东输二线；杂散电流；埋地管道；
Yulongling ground electrode; West-East Gas Pipeline 2; Stray Current; Underground pipeline;
鱼龙岭接地极；西气东输二线；杂散电流；埋地管道；
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