查询词典 long distance

Long Distance Information, like Crow and Carrion, also raises questions that are as relevant now as they were when first made.

长途信息》同《乌鸦与腐肉》一样，也在今天提出了与当初创造时相关的问题。

This paper combines with pipeline delivery of our countrys actual conditions and other methods of detection and location. To the leakage characteristic of the fault to the long-distance natural gas pipeline, a method is raised, which is on the basis of wavelet and negative-pressure-wave to detect the leakage and locate. Jobs in this paper are as follows:Multi-resolution decomposition and reconstruction of wavelet transform is utilized to filter the noises, which the leakage brings the noises of negative-pressure-wave. The research is worked in the wavelet and wavelet packet filter. The wavelet transform have a fast and accurate recognition capability to signal singularity. This paper chooses wavelet technology to catch the break point of pressure signal.

本文结合我国管道输送的实际情况和目前现有的各种泄漏检测与定位方法，针对天然气长输管线泄漏故障的特点，提出了基于小波分析和负压波相结合的方法检测泄漏并定位，其中主要进行了以下几个方面的工作：利用小波变换的多分辨率分解和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行降噪处理，并对小波及小波包优化的降噪效果进行对比性研究；利用小波变换技术对信号奇异点的快速、准确的识别能力，捕捉负压波信号的突变点，从而判断是否有泄漏发生。

In the process of long-distance open education, formal examination is regarded as the main chain as well as the important composition in the system of quality guarantee.

内容摘要］远程开放教育中，形成性考核是教学环节中不可或缺的内容，是远程教育教学质量保证体系的重要组成部分。

Fibre Channel is a high-performance transmission protocol, which has characteristics of high-speed and long-distance transmission.

光纤通道是一种高性能传输协议，它具有高速性和远距离传输等优点。

The Company Three Guarantees to product quality, can be harder to sell the exchange, and may charge d'affaires long-distance transportation.

本公司做到产品质量三包，不好卖的可调换，另外可代办长途运输。

I believe when I board on a long distance plane, no cigaretaccompany,Iam still fine, but why innormal timemost people like to take a cigaret after a meal or when waiting for someone use to take more cigaret?

我相信乘坐远程的飞行时，没有香烟可以陪伴，我依然正常，但为什么平时总是喜欢饭后一支烟，或等人的时候多抽几支？

Since then, the synthetic surface has taken the place of cinder track and has been acknowledged as the fastest track for sprinters and is also the preference of long distance runners.

此后，塑胶跑道取代了煤渣跑道，被公认为是可以让短跑选手们跑得最快的跑道。当然，它们也同样是长跑选手的首选。

Then three candidate modulation schemes exploiting spatial dimensions are proposed. At last, the three modulation schemes are compared by power efficiency and bandwidth efficiency. It shows that spatial quadrature amplitude modulation scheme is appropriate for long distance wireless optical communications for its high bandwidth efficiency and spatial circular symmetry.

参照传统时域信号设计方案，提出了三种空间调制信号具体设计方案，并从带宽效率和功率效率两性能上进行了比较，结果表明正交幅度调制具有带宽效率高、功率效率低的特点，而且采用的信号点越多其带宽效率就越高，另外其空间信号图案还具有圆对称性，因此非常适合在空间带宽有限的远距离无线光通信中使用。

Multi-spot, long distance and strong disturbance are the problems during the design and construction of the closed circuit television system.

多点位、远距离、强干扰，一直是闭路电视监控系统设计和工程实施中的难题。

Room has closed-circuit television, central air conditioning, international and domestic long distance calls, can provide you with free broadband Internet services.

房间内有闭路电视、中央空调、国际国内长途电话、可为您提供免费宽带上网服务。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。