查询词典 transient period

A seven-node difference scheme of the diffusion equation was proposed to study the behaviors of transient electromagnetic field in complicated 3-D geoelectric body. Models of roadway and anomaly body were set up for simulating the transient field excited by a vertical magnetic dipole source. The result of numerical simulation shows that the presence of low resistive conductor leads to noticeable distortion of isolines for the "smoke ring" field, whereas the distortion is not so obvious where the roadway and the poor conductor are located.

为了探讨复杂三维地电体中瞬变电磁场的响应特征，推导了三维扩散方程的七点差分格式，建立了巷道和异常体模型，并对垂直磁偶源激发的瞬变场进行了数值模拟，观察到早期&烟圈&场在低阻体处等值线发生的明显畸变，在巷道和高阻体处的畸变较弱，随着时间的增加异常体的影响逐渐减弱。

It is clearly pointed out that the developing trend of the optical interferometry moves towards high phase resolution, high spatial resolution, wide wave range and highspeed transient measurement, and it will find everincreasing applications in the transient wavefront measurement, microstructure dynamic analysis for micromechanics and so on.

最后明确指出光干涉技术正沿着高相位分辨率、高空间分辨率、宽波段和瞬态高速测量的方向发展，并将会在瞬态波前测量、微机械的微结构动态分析等方面有着越来越广泛的应用。

The results of the computation as well as that of the experiments show that though the propagation delay of the transient current in the loop circuit is in the order of several nanoseconds, it must be fully taken into consideration in the transient mode.

计算结果与实际结果均表明，瞬态电流在本文所提出的实验回路中的传输时延虽为纳秒级，但应在瞬态模型中给予充分考虑。

ABSTRACT Power system transient stability analysis and its preventive control are key to power system transient security analysis and contr...

电力系统暂态稳定分析及其预防控制是电力系统暂态安全分析和控制的核心内容，它直接关系到对电力系统运行的基本要求——安全、优质、经济。

The second chapter is a biographic analysis of Lian, divided into four sections including his growth and enlightenment period, cultivation period, summit period, and period of retired but keeping on works.

第二章为作曲家连信道生平之介绍，共分四节成长启蒙时期、音乐教育养成时期、音乐事业巅峰时期、退而不休的创作时期。

In this article made the cluster of phonological type by 4 of main phenophase with bourgeon period, leaf expansion period, flowering period and fruit ripenes period of observed data on phonology of 42 kind of plant 34 year in Minqin desert area, further the 23 of phenology classification merged by phonological type.

本文以民勤荒漠区42种植物34年的物候观测资料，以萌动期、展叶期、开花期和果熟期4个主要物候期进行物候型聚类，进而将物候型归并为23个物候类型，聚合的物候类型基本上遵从植物的生态型特征，较系统聚类法直接用样本聚合的类型更加科学合理。

The deterministic neuronal firing model could simulate only the period adding bifurcation scenario in which period n bursting was changed into period n+1 bursting directly. The period adding bifurcation scenario and the new firing pattern similar to the experiment could be simulated in the stochastic Chay model.

确定性神经放电理论模型只能模拟周期n节律直接到周期n+1节律的加周期分岔序列；而随机Chay模型可以模拟实验中的加周期分岔过程和新节律。

American Geography experiences preliminary development period and clipping development period , and now is in persistent development period , while Chinese Geography grows up circuitously and now is in clipping development period .

美国地理学经过初期发展，高速发展后，目前进入持续发展阶段；中国地理学在曲折中崛起，目前正处在高速发展时期。

China in 1949 to the end of 1950"s, which witnessed the first unprecedented outburst of political passion of Chinese youth, 2 the ten-year "Cultural Revolution period: when Chinese youth, driven by enthusiasm and blinded by flightiness and rashness, became politically naive and fanatical, 3 after the Third Session of the Eleventh Party Congress period: when political passion of Chinese youth, with the great tide of reform and open-door policy, came to a new surge, 4 the late 1980s period: when western modern ideas flooded into China, a student movement took place with impatience and negation of Chinese traditions and biased worship of western politics, and 5 the 1990s period: when Chinese youth discarded their restless state of mind started to take part in politics more maturely.

二是中国青年政治激情的辉煌与缺失，从五个阶段论述：中华人民共和国成立至五十年代末期，新中国青年政治激情的第一次空前大爆发；十年文化大革命时期，青年凭着青春的单纯和满腔的热情，带着相当程度的盲目与浮躁，最后导致政治上的狂热和幼稚；十一届三中全会以后，随着改革开放的大潮，中国青年的政治激情再次汹涌澎湃；80年代后期，随着西方现代社会思潮的涌入，急躁情绪、对传统的盲目否定，对西方政治的片面崇拜引发学潮；90年代青年政治参与的"躁动"心态明显减弱，青年参与社会政治的心态趋于成熟。

Results showed that the CO2 absorb ability in the eight Crop systems net productivity process was 4 032 366ta^(-1); the amount of CO2 outlet in the soil was 3981753ta^(-1), less than the CO2 adsorb ability, so that the whole crop system was a weaker carbon sink process in the atmosphere. The continue planting species such as Rice, sugarcane, cassava, and melon crop or high haulm crops have the characteristics of annually crop net productivity CO2 absorb ability bigger than soil CO2 outlet and this systems had bigger carbon sink function ability; the short haulm crop systems of peanut, soybean, flowers, and vegetable annually crops net productivity CO2 absorb ability less than soil CO2 out let, but also carbon sink source. The CO2 absorb ability of fruits and economic parts above ground bigger than that which growth under ground. Except of the CO2 absorb ability less than the soil CO2 outlet in the peanut during growth in procreate period, the other seven crops CO2 absorb ability were bigger than that soil CO2 outlet during procreate period. Most of crops during growth in procreate period had carbon sink function ability, and only in barren period showed the carbon source function phenomenon.

结果表明：2005年广州市8种农作物系统作物净生产力吸收CO2 4032366ta^(-1)，其土壤CO2排放3981753ta^(-1)，吸收大于排放，对大气CO2而言，整个农作物系统是一个弱的碳汇；水稻、甘蔗、木薯和果用瓜4种连作或高杆作物系统每年作物净生产力吸收CO2量大于土壤CO2的排放量，系统具有较大的碳汇功能，花生、大豆、花卉和蔬菜4种矮杆作物系统每年作物净生产力吸收CO2量小于土壤CO2的排放量，系统起着碳源作用；果实或经济产量生长在地上部分的作物其单位面积吸收CO2能力比果实生长在地下的作物大；除花生在生育期间生物量吸收CO2量少于同期土壤排放以外，其余7种作物在生育期间生物量吸收CO2的量大于同期土壤排放，大多数农作物在生育期间具有碳汇功能，在撂荒期才体现碳源作用。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？