传统的全光微波滤波器大多是正系数，只能实现低通或等效带通。
All-optical filters with all positive coefficients can only function as low-pass filters or equivalent band-pass filters by traditional approach.
那基本的意思就是不要用正的,动力系数来运作电站，或者当,你能避免正的回馈系数,这点我们已经讨论过了。
What that basically means is do not run the plant with positive power coefficients or to the extent that you could avoid the positive feedback coefficients which we've already discussed.
正> 提出了通过估计目标反向散射系数来探测水下远程目标的一种方法。
An approach to the detection of underwater remote target by estimating the back-scattering coefficient of target is proposed.
本文利用整系数多项式与正有理数的对应，将多项式因式分解通过对真分数序列筛选的办法求得因式。
Through the corresponding between integral coefficient polynomial and rational number, this paper obtains factorization from factorization of polynomial by the way of sieve in true fraction series.
给出了一个利用福里哀系数求非常值的连续周期函数的最小正周期的有效方法。
A useful method is given which can count the least positive period of a continuous function by Fourier coefficients.
结果表明，1）该含水层导水系数在空间上的变化服从正态概率分布；
The results shows that: 1, The spatial change of the transmissibility coefficient of aquifer complies with the normal probability distribution.
实验结果表明：复合材料具有明显的渗滤效应及正温度系数效应。
The results showed that the composites exhibited percolation threshold effect and positive temperature coefficient effect.
用环氧和有机硅树脂涂料对由聚乙烯／炭黑（PE／CB）制备的正温度系数（PTC）电路保护元件的表面处理及其工艺进行了研究。
The packaging materials and processes of positive temperature coefficient (PTC) devices made up of the composite of polyethylene and carbon black(PE/CB) for over current protection were studied.
直流电磁铁是广泛应用的电磁控制元件，PT C元件是具有正温度系数特性的半导体陶瓷热敏电阻。
Direct current electromagnet is extensively used as electromagnet controlling element. PTC element is a ceramic thermistor with positive temperature coefficient.
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。
Positive temperature coefficient (PTC) thermistor and triple frequency harmonic filter can reduce zero sequence voltage when a nonlinear resistance is used to prevent ferroresonance.
简要介绍了自限温型PTC（正温度系数）电热带的结构、工作原理及性能特点；
The construction, work principle and characteristics of the temperature limited PTC(positive temperature coefficient) heating cable are briefly presented.
在电池内装置正温度系数端子(PTC)，可提高电池的耐过充性和短路安全性。
Fitting a positive temperature coefficient part (PTC) was very useful to improve the overcharge performance and short circuit safety performance.
正温度系数(PTC)转换器也是如此，它可以避免电池组过热。
So is the Positive TemperatureCoefficient (PTC) switch, a device that is supposed to keep the battery from overheating.
实验指出，其电阻率随温度的变化呈不同强度的正温度系数（PTC）效应。
The results of experiment show that the resistivity of the composites changes along with the temperature in a behavior of positiver temperature coefficient (PTC) effect.
借此制成一种电阻的温度系数为正、工作温度较高的半导电电缆料。
Thereby a semiconductive material has been developed with positive temperature coefficient of resistivity and with higher operating temperature for cables.
汽车车速、转向系统扭转刚度和主销后倾角对回正性能的影响较大，而转向系统的粘性摩擦系数对回正性能的影响相对较小。
Returnability is affected mainly by automobile velocity, torsional stiffness of steering system and caster angle and relatively little by viscous friction coefficient of steering system.
最后，在理论分析、数值模拟及试验验证的基础上，给出了CFRP的强度折减系数值和正截面承载力计算表达式。
Finally, based on theoretical analysis, numerical simulation and test verification, the strength reduction factor and the calculation expression of normal section bearing capacity of CFRP are given.
对多层均匀介质板，正、反两方向上的正入射复透射系数相同。
To multilayer acoustical panel, the complex transmission coefficients of multilayer both forward and backward incidences are definitely the same.
利用褶积模型研究转换波正、反演问题的关键是建立转换反射系数递推公式。
The essential of studying the forward and inverse problems of converted wave with the use of convolution model is to deduce recursion formula of the reflection coefficient.
研究结果说明，FDI在我国的技术溢出的长期效应虽然为正，但是其效应系数非常微小，与其他学者的实证结果不一致。
The analysis shows that the effect of FDI spillovers in China in the long run is positive, but its coefficient is very small. It is so different with other scholars 'results.
采用线性组合算符和幺正变换的方法，得出极化子基态能量与色散系数、耦合强度以及磁场强度之间的关系。
The relations of the ground state energy with the coefficient of dispersion, strength and magnetic field strength are derived by using linear-combination operator and unitary transformation method.
高分子自恢复保险丝是一种新型正温度系数的过流保护元件，其使用及选用都有一定的规则。
The macromolecules self-healing fuse-wire is a new excess current protection component of plus temperature coefficient. Its application and choice should comply with a certain rule.
合金热膨胀系数与VITA瓷达到正相匹配，可形成良好的结合。
It has the approximate thermal expansion coefficient with VITA95 porcelain system and can form a good bonding.
首先，使用局部线性方法给出模型的系数函数的初始估计；然后使用积分方法，给出它们的积分估计；进一步，研究这些积分估计的渐近正态性。
First, with the local linear method, the coefficient functions of the model are estimated, and then, with the integration method, their integrations are estimated.
介绍了正温度系数热敏电阻PTCR耐雷电波冲击测试仪的工作原理和基本性能。
This paper presents the theory and performance of the tester for PTCRs endurance of being struck by lightning.
通径系数分析结果，有效茎数对蔗茎产量的直接正效应大于株高和茎径；
Path coefficient analysis indicated that the positive direct effect of millable stalks on cane yield was bigger than those of plant height and stalk diameter.
实验结果表明，材料具有明显的渗滤效应、正温度系数效应和非线性伏安特性。
The results show that the composite exhibits percolation threshold effect, positive temperature effect and nonlinear volt ampere characteristics.
本文进一步研究了这些系数随时间变化而趋于一个定值或在某一常数附近作周期性振荡，并给出容易检验存在唯一全局渐近稳定的正周期解的条件。
In this article we further study the cases in which the coefficients of the model vary with time and tend to definite values or vibrate periodically near certain constants and...
正态母体特征值（母体均值、百分位值、百分率、标准差和变异系数等）的检验是工程中常见的问题。
The normal population characteristics, such as the mean, standard deviation, percentile, percentage and coefficient of variation, are often tested in engineering.
正态母体特征值（母体均值、百分位值、百分率、标准差和变异系数等）的检验是工程中常见的问题。
The normal population characteristics, such as the mean, standard deviation, percentile, percentage and coefficient of variation, are often tested in engineering.
应用推荐