查询词典 fluctuation

The fluctuation of available wireless link bandwidth motivates the study of adaptive multimedia services in wireless/mobile networks This paper focusses on a bandwidth adaptation scheme, which takes the maximum revenue as the objective The optimal bandwidth adaptation algorithm which seeks to achieve maximum revenue is an NP hard problem, because it has to investigate every adaptation case A bandwidth adaptation scheme based on genetic algorithm is proposed, which achieves near optimal total revenue with much less complexity compared to an optimal bandwidth adaptation algorithm Simulation is carried out to compare the algorithm with an optimal bandwidth adaptation algorithm, the results reveal that the genetic algorithm approximates the optimal solution very well

无线链路带宽的快速波动推动了无线/移动网络中对适应的多媒体服务的研究以无线网络系统的利润最大化为目标，研究适应的多媒体应用的带宽适应方案达到利润最大化的最优带宽适应算法是一个NP hard问题提出一个基于遗传算法的带宽适应方案，在算法复杂度大大低于最优算法的同时，获得的利润值近似最优性能分析和实验结果证明了这一结论1 引言因特网和无线/移动通信技术的迅速发展，推动了两者服务的融合无线/移动环境下因特网服务的提供需要解决的一个关键问题是QoS保证提供QoS保证的一个重要技术手段是连接接纳控制 [1] CAC算法的目标是在保证切换连接请求丢弃率满足系

Due to the transport capability and the limitation of freights, coal is hard to transport, while its price is much lower and the fluctuation is much smaller, in addition, the generation cost is lower, therefore it has strong comparative advantage to develop coal chemical industry.

新疆拥有丰富的煤炭资源，预测储量超过1.82万亿吨，占全国的40.5，由于运力和运费所限，煤炭难以运输，煤炭价格低且价格波动小，发电成本较低，发展煤化工具有很强的比较优势。

A measure of the fluctuation in p r ices of common consumer goods and services over a fixed time period.

在一定时期内衡量常用消费品和服务价格波动情况的一种尺度。

After the Three Gorges Reservoir impounding,reservoir water level fluctuation and rainfall infiltration have become the major factors that affect the stability of landslide.

三峡水库蓄水后，库水位涨落和降雨入渗是导致滑坡的主要因素。

Establishment and application of this drawing reduced the fluctuation of blending ratio very well and leveled off the intermixing quality.

该控制图的创建和使用，有效降低了配比波动，稳定了混匀质量。

Storage devices played an important role in MicroGrid control, the inverter of battery which used droop control could provide fast power support for the islanded MicroGrid, and damped the voltage and frequency fluctuation caused by the slow dynamical response of gas turbine efficiently.

采用下垂控制策略的蓄电池在微网孤岛运行时可以快速为系统提供有功、无功支撑，有效抑制了由于燃气轮机动态响应速度慢引起的电压和频率偏差。

The market risk of the coal liquefying project lies in the price fluctuation in international and domestic both petroleum market and refined oil market.

煤液化油项目的市场风险，在于国际国内石油市场和成品油市场价格的波动。

Little fluctuation in respect of listed companies for the future is obviously not very optimistic about exports, but many professionals believe that the pharmaceutical industry belonging to a rigid demand for the market, will not be the same as the steel industry collapse of the decline, even if the decline in the rate will not be too great, most of them are cautiously optimistic.

在未来上市公司方面的一点波动，显然不是很乐观，出口，但许多专业人士认为，制药业属于一个市场的刚性需求，将不会作为下降钢铁业的崩溃一样，即使在利率的下降将不会太大，大多是谨慎的乐观。

The salinity endurance of nauplii is vital to the population recruitment under salinity fluctuation, and then affects its ecological distribution.

在盐度变化的环境中无节幼体的耐盐能力是决定其群体增殖量的主要因素，并进而影响其生态分布。

Any religious phenomenons is the synthetical results of the various factors, involving the fluctuation of the politics,economy and concept,etc. The phenomenon of building nunneries in great quantities at high middle ages obviously had relations with the important changes which differed from the former.

任何一种宗教现象产生的背后是各种因素综合作用的结果，涉及到政治、经济、观念等方面的变动，中世纪盛期出现大量兴建修女院的现象，显然与公元1000年左右西欧社会所发生的跟以往不同的重大变化有关。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷