查询词典 under the circumstances

this paper analyses the basic principle of tpc,compares the error performance in the system which has been applied with tpc with the uncoded system,studies the influences which different block codes and iterative numbers to tpc decode performance.under the circumstances of different iteration numbers and block codes,experiment simulation is carried on.the simulation results indicate that introduction of tpc can get the code gain of 5~6 db.tpc decoding algorithm is simple,and doesn′t have the error floor,the complexity of its hardware implementation is smaller,it is a kind of practical channel coding method.

摘 要：在分析turbo 乘积码的基本编译码原理的基础上，比较了未编码与编码后系统的差错性能，研究了选取不同分量码、不同迭代次数对tpc译码性能的影响。在不同迭代次数与分量码情况下，进行了仿真实验。仿真实验表明，在相同的差错性能条件下，采用tpc码能带来5~6 db的编码增益。tpc译码算法简单，没有错误平层，硬件实现复杂度较小，是一种非常实用的信道编码方式。

From the sense, firm's development just means the process of finding its own superiority under the circumstances of the uncomplete information market and the uncomplete rational division of work.

企业的发展就是在不完全信息的市场上和不完全理性的分工中寻找企业发展的优势所在。

A merge-split algorithm based on study property of neural net and sum aggregate is presented. Its merit is that its merge is disconnected a little and freedom satisfies the adaptability, and it is realized during learning rather than stipulating in advance. Furthermore, the method of fitting edge of uncontinuous image with neural net is given. The method can carry on the fit at self-learning, using its learning function fully under the circumstances without the mathematical function form of edge.

提出了一种基于神经网络学习特性和集合论的边缘分段算法(Merge-Split)，优点在于它的分段间断点、自由度满足自适应性，能在学习过程中实现而不必事先规定；进一步提出神经网络拟合不连续的图像边缘的方法，在无边缘数学函数形式的情况下，充分利用其学习函数的任意逼近和自学习性进行拟合，实践证明该方法可以克服以往边缘拟合方法的不足。

Under the circumstances of less investment,poor school running conditions and the unreasonability of the disposition of recourses,it is more significant and urgent to strengthen the integration of recourses.

在高职院校相对投入不足，整体办学条件亟待改善，资源配置存在不合理状况的情况下，加强资源整合具有重要的现实意义和迫切性。

Under the circumstances of less investment,poor school running conditions and the unreasonability of the disposition of recourses,it is more significant and urgent to strengthen the integration of recourses.

资源整合应坚持有利于促进人才培养质量和特色兴校，有利于充分利用资源、实现增值、整体功能发。。。资源整合是促进高职院校内涵发展的有效手段和途径，它具有聚焦、聚强、聚变、聚效功能。

The objective of the dissertation is to find a way to improve Freight service of TRA under the circumstances described above.From the view of external cost of overall transportation, railway is the most cost effective vehicle in terms of external cost if we count the cost of green house effect, air pollution, noise pollution, and accidental cost.

就总体运输之外部成本而言，运具能源耗用所产生的温室效应、空气污染、噪音污染、肇事成本等，铁路运输所产生之外部成本远较公路运输为低。

Now, under the circumstances of the integration with global economy and the wide cultural exchanges, we should give more insight into the West culture and clear obstacles by careful study so as to make the culture exchange go with a swing.

当前在全球经济一体化、文化交流空前广泛的情况下，我们应该进一步深入了解和研究西方文化，认真学习，扫除障碍，使跨文化交际得以顺利进行下去。

PID control has been successfully used in many fields such as aviation, spaceflight, missile and other industry control system. The study object in the thesis is missile that flies hedgehopping over sea at minimum altitude. Many interference problem must be solved when missile flies at minimum altitude, otherwise the missile would be dangerous of bumping into the sea under the circumstances of bad weather and wave. The different kinds of interference factors are contradictions with requirements of control system, which can not be solved by PID control.

尽管在航空、航天、导弹以及其它工业控制领域PID控制曾经应用的十分普遍和成功，但对本文所研究的某型超低空掠海飞行的导弹，要实现超低空飞行必须处理好各种干扰问题，否则，在恶劣的气象和海情的条件下便有使导弹与海浪相撞的危险。

The Nanxun district in Huzhou City that is located in the Yangtze Delta where the economy is in a high level. The starting of the housing industry is much later and under the circumstances that the development is immature to some extent. Facing the violent competition of the market, only through carrying out the effective promotion by the developing party can the project be outshined others.

在湖州市南浔区这样处于长三角经济发达地区却房地产市场起步较晚、发展相对不成熟的环境下，面临市场激烈的竞争，开发商只有进行有效的营销策划，才能使房地产项目脱颖而出。

The investigation result shows: The in the period of society transition, the need that the meaning system changes is a social reason why an individual is converted to the religion; person is exposed to the religion under the circumstances that the external utility motive is driven at first, but as time goes on, the composition of the spiritual aspect increases gradually in its faith; The religious belief reinvents the individuals ethics moral concept and social behavior, have produced certain positive effect objectively.

调查结果表明：社会转型时期，意义系统转换的需要，是个体皈依宗教的社会原因；信仰者最初是在外在的功利性的动机驱动下接触宗教的，但随着时间的推移，其信仰中精神层面的成分逐渐增加；宗教信仰在一定程度上重塑了教徒的价值体系，导致其社会行为的信仰归因，但客观上也产生了一定的积极的效应。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。