Finally, after each sampling and cleaning sequence the measurements’ zero point ischecked with a water freeness measurement to make sure the next reading isrepeatable.
最后，在完成每次取样和净化顺序后，必须借助于水游离度测量来校正测量仪器的零点，以确保可以进行下一个读数。
Technically speaking, a regular expression is a string (that is, a sequence of characters composed of letters, Numbers, and symbols) that represents a pattern defining zero or more strings.
从技术角度而言，正则表达式是表示某种模式的字符串(也就是说，由字母、数字和符号组成的字符序列)，用于定义零或更长的字符串。
If absent, or set to zero (expressed as a value of PT0S), it implies that the Sequence will never expire.
如果没有出现或设置为0(表示为值pt0s)，它暗示序列将永远不会过期。
XPath 2.0 introduces the concept of a sequence, which is an ordered list of zero or more values - nodes, integers, strings, and so on.
XPath 2.0引入了序列的概念，序列是一种有序列表，可以包含零个或多个值—节点、整数、字符串等等。
If the argument is an empty sequence, fn: string (seq) will return a zero-length string, but the other function returns an empty sequence.
如果参数是空序列，fn：string (seq)将返回长度为零的字符串，另一个函数则返回空白序列。
Based on perfect sequences and orthogonal sequence sets, a new class of mutually orthogonal sets of zero correlation zone sequences is presented.
该文基于完备序列和正交序列集，构造出一类相互正交的零相关区序列集。
The zero sequence directional relay is an important relay component for transmission line.
零序功率方向继电器是线路保护中的一个重要元件。
It mainly focuses on analysis and determining method of zero sequence power direction relay.
重点介绍零序功率方向继电器的分析及判定方法。
The extracted fault characteristics of transient zero sequence current is looked as condition attributes and the multiple of signal enhancement is.
将提取的暂态零序电流故障特征作为条件属性，信号增强倍数作为决策属性，构成一个决策系统。
This device use the principle of additional DC power supply in main feeding switch, and use the principle of direction of zero sequence power in branch feeding switch.
该装置在总馈电开关处的漏电保护装置使用附加直流电源原理，在分支馈电开关处的漏电保护装置使用零序功率方向式保护原理。
This paper analyzes the mechanism of zero sequence voltage generating and its magnification by DVR.
分析了瞬时电压补偿装置(DVR)产生零序电压及其放大机理。
A double lines distance relay based on the zero sequence components is presented.
提出了适用于平行双回线路的零序距离继电器新判据。
General conclusions are extracted and the difference of zero sequence current distribution from classical theory is found.
最后总结出一般性的结论，其中关于零序电流的分布与经典理论有较大的区别。
It is derived that the phase of the FFT for a conjugate-symmetric sequence is zero.
推导出共轭对称序列的快速付里叶变换FFT具有相位为零的特性；
Similar performance can be obtained to some extent with the simpler scheme of no zero sequence component design.
无零序设计方案的效果与最大相电流最小化设计方案接近。
Can reliably determine, within the community and bounds detection ma level and zero-sequence current phase short circuit fault current, automatic removal of single-phase ground fault and phase fault.
能可靠判断、检测界内与界外毫安级零序电流及相间短路故障电流，实现自动切除单相接地故障和相间短路故障。
Positive temperature coefficient (PTC) thermistor and triple frequency harmonic filter can reduce zero sequence voltage when a nonlinear resistance is used to prevent ferroresonance.
在非线性电阻消谐方式下，正温度系数(PTC)热敏电阻和三次谐波滤波器可以较好地解决零序电压偏高的问题。
Compared with the previous methods, the Newton-Raphson method is used not only for solving the positive equation, but also the negative and zero sequence equations.
与已有方法相比较，所提方法不仅在正序方程中，而且也在负序和零序方程中采用牛顿法修正方程。
This paper studies the influence of converter transformer D-bridge zero sequence circulating current on valve short circuit protection.
笔者研究了换流阀三角形侧零序环流对阀短路保护误动作的影响。
Main functions and characteristic for zero sequence current protection setting program are presented in this paper. Ways of no_balance zero sequence current for double lines are introduced.
主要介绍了零序电流保护整定计算程序的主要功能和特点，简要介绍了双回线零序电流的不平衡解决方法。
In typical six-phase transmission system, half positive sequence, half zero sequence and half negative sequence fault components are independent of the variance of system impedance.
在典型的六相输电系统中，半正序、半零序和半负序故障分量不受系统阻抗变化的影响。
Based on the symmetry component theory, a method of the motor protection is presented by measuring positive, negative and zero sequence current component.
基于对称分量法理论，提出了基于检测正序、负序、零序电流分量的电动机保护方法。
The zero sequence component and the positive sequence component equations of transmission lines are derived on the basis of telegraph equations.
运用电报方程推导出三线-地耦合传输线零序分量和正序分量传输线方程。
Used together with SD-LJD (LXK) series ZCT and executing relay to form a complete zero sequence (ground) protection system.
配合SD - LJD (LXK)系类零序电流互感器和动作继电器即组成完整的零序(接地)保护系统。
Matches a combining character sequence: that is any non-combining character followed by a sequence of zero or more combining characters.
匹配一个组合字符序列：即任意非组合字符后跟零个或多个组合字符。
This paper analyses the existing zero sequence directive current selective leakage protection principle which is to surmount the effect of distributed capacitance on it.
对近期提出的克服电网分布电容影响小电流接地选线的零序直流选择性保护原理作了理论分析。
The properties and selection of the zero-phase sequence current transformer core and tripper for GFCI are in detail described.
详细叙述了漏电开关零序电流互感器及其铁芯，脱扣器的工作特性、材料选用。
The inverse time delay characteristic is adopted by the basic zero-sequence over-voltage protection.
其基本保护采用零序过电压保护，动作时间采用反时限特性；
The latter makes use of zero sequence voltage detection, alarm and display circuit.
信号报警显示部分由零序电压检测、报警、显示等电路构成。
The paper proposes a method which corrects the Angle of zero-sequence current in the algorithm of differential equation used for distance protection and fault location of HV transmission lines.
本文针对高压输电线距离保护及故障测距中常用的解微分方程算法，提出了一种零序电流相位修正的方法。
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