查询词典 PN

To better match the characteristics of the two PN junctions (the diode junction and the transistor base-emitter junction), a transistor may be used in place of a regular diode, like this

为了更好地匹配两个PN结地特性（二极管PN结和晶体管发射结），可以用晶体管代替二极管，如图。

In this paper,the influence of the Doppler shift on the performance of the PN code acquisition circuit is analyzed,and the method of orthogonally relative elimination is proposed to eliminate the Doppler shift.

文章在分析多普勒频移对PN码捕获性能影响的基础上，采用基带正交对消法去消除多普勒频移，消除了多普勒频移对PN码捕获电路的影响，解决了低信噪比情况下在基带上消除多普勒频移的难题。

Finally, by introducing the differential relations into a kind of orthogonal PN sequence, a joint algorithm using the PN sequence as the training symbol can be got, and it can find the timing position accurately.

最后对一组正交PN序列引入差分关系，提出了一种在AWGN信道下只使用该序列作为训练符号即可完成联合同步的算法，该算法能获得准确的定时同步位置。

An investigation shows the relationship between the impairment and PN codes partial correlation,and its influence on BER performance.

而在实际的系统中，一般仅把一部分PN码用作扰码，而PN码的部分自相关函数和部分互相关函数要比其周期相关函数复杂的多。

Shaded 60%in seedling stage,Fv/Fm and AQY of ginger leaves increased,but MDA content,SOD activity and Pn decreased.Pn,AQY and Fv/Fm of ginger leaves treated with DDTC decreased whether shading or not,but the effect of DDTC on shaded plants was less than that on unshaded plants.

苗期遮荫60%，Fv/Fm与AQY明显提高，MDA含量降低，SOD活性减弱，Pn降低且日变化曲线变为"单峰型"，表明苗期适当遮荫有利于提高光合效率和PSII光化学效率，减轻光抑制和光氧化。

The Pn of Phragmites communis is higher than that of Phalaris arundinacea L, meanwhile Phragmites communis has the higher diurnal photosynthetic capacity, which shows that the Phragmites communis could grow more rapidly, and have higher biomass, so the Phragmites communis could be one of the priority implemental plant.

芦苇的Pn比虉草的Pn高，同时芦苇较虉草有更大的日光合量，说明芦苇相比较长势更快，生物量更高，当年栽植当年见效，在湿地生态系统人工修复中可作为优选工具植物之一。

The primary aim of this experment was to make clear the photosynthetic characteristics of eggplant.The photosynthetic charateristics of different varieties, nodes, growth and development stages and the effects of photo, CO2 concentration and temperature on Pn of own-rooted seedlings in eggplant;the photosynthetic charateristics of grafted seedlings that cions were grafted on rootstocks; the effects of low temperature(10/5 ,day/night) and poor light(60mol.m-2.s-1 and l20mol.m-2.s-1) on photosynthetic and other physiological characteristics of own-rooted seedlings in eggplant with four and five leaves were studed.

以茄子自根苗为试材，研究了不同品种、不同叶龄、不同叶位、不同生育期单个叶片的光合特性及环境因子对盛果期功能叶片Pn的影响；以托鲁巴姆、CRP为砧木，二苠茄和快圆茄做接穗所得的茄子嫁接苗为试材，研究了嫁接苗单个叶片光合特性及环境因子对嫁接苗功能叶片Pn的影响；以自根苗幼苗(4-5叶)为试材，研究了低温(10／5℃)弱光60μmol.m~(-2.s~(-1)和120μmol.m~(-2)。s~(-1)对茄子幼苗光合及其它生理特性的影响。

In parallel to PN, chapter 4 defines a series of concepts for timed PNs with weak firing rules , gives generative approaches for state reachable graph and state coverable graph, and proves that WTPN is equivalent to its underlying net about liveness, boundedness and reversibility.

第三章除简介PN的基本知识，还分析了现有的四种确定性时间约束PN与其基网系统之间关系，指出了它们用于定性分析和性能评估时出现的一些问题及其产生的原因，比较了它们的异同并指出了一些现存关于它们的模糊认识以及由此产生的不妥结论，基于此提出并初步探讨了四种LDTCPN模型与其基网系统的关系。

It has been obtained by analysis that for ultra-high power electric arc furnace using scrap charging the relation formula between rating capacity of transformer Pn and parameters- electric power consumption W, transformer power utilization ratio C 2, total power o...

经分析得出以废钢为原料的超高功率电弧炉变压器额定容量Pn kVA与吨钢电耗W、变压器功率利用率C2 、总通电时间ton、出钢量G之间的关系式为：Pn =(W·G·6 0 )(ton·cosφ·C2 )，同时给出了二次电压的确定方法。

In this paper, a simple, accurate and intuitionistic formula and method for calculating and analyzing the I-V characteristics of a pn junction is deduced. The method is used to calculate and analyze the I-V and RD-V characteristics of two typical HgCdTe loophole junctions. Some important parameters which reflect the characteristics of a diode, such as surface Ohm leakage conductance and the distribution of the ideal factor n with voltage are obtained.

本文推导了一种可简便、准确、直观计算和分析pn结I-V特性的公式和方法，并应用该方法对两类典型HgCdTe环孔pn结的I-V、RD-V特性进行了计算和拟合；得到了表面欧姆漏电导、二极管理想因子n随电压的分布等反映二极管结特性的重要参数。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。