查询词典 catch-can

With the fast development of economic construction of our country, the safety accident in production is outstanding day by day too, the question of safety in production receives the extensive concerns of the country , government and society more and more, directly subordinate organ as the government sets up the mechanism of safety in production rapidly in the whole country, the safety in production has been laid out the government"s important agenda, but as to new organization of safety in production, difficulty and pressure , opportunity and challenge faced are a lot, how to put the thinking in order in work of thousands of strands and loose ends, catch the focal point, give full play to the role of the government"s supervision and management, turn back the passive state of the safety in production rapidly, it is the focal point that this text discusses.

随着我国经济建设的快速发展，安全生产事故也日益突出，安全生产问题越来越受到国家、政府和社会的广泛关注，安全生产机构作为政府的直属机构在全国迅速建立起来，安全生产工作摆上了政府的重要议事日程，但就新的安全生产机构来说，面临的困难和压力、机遇与挑战是很多的，在千头万绪的工作中如何理清思路，抓住重点，充分发挥政府的监督管理作用，迅速扭转安全生产工作的被动局面，是本文讨论的重点。

In implementing the socialist outlook on honor-dishonor,we must catch on the key point s.

落实社会主义荣辱观应当把握住关键。

The main jobs of the paper are as follows, Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which is brought by leakage. With the capacity to detect the signal singularity quickly and accurately, wavelet transform was used to catch the break point of pressure signal. Accordingly, the work improved the location accuracy.

主要研究工作有：利用小波变换的多分辨率分解和重构技术，对采集到的管道泄漏产生的负压波信号进行消噪处理，并对几个影响消噪质量的关键因素及其选取方法进行了分析；再利用小波变换技术对信号奇异点的快速、准确的识别能力，对经消噪后的负压波信号进行奇异点捕捉，从而实现更精确的单条燃气管道泄漏定位。

As the bridge and medium between audience and judiciary administrator, journalists through their cameras let audience catch the point of trial process about many important cases regarded by the public.

电视记者的摄像机时常聚焦法院的审判庭，将社会关注的大案要案的审判过程直接展现给观众，成为沟通观众和法院以及司法机关的司法执法活动的重要媒介和桥梁。

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。

Major characters of the short tale 'fingers' include the journalist – Joan Hope and the explorer Longsdale Prince, Turner's description on the character was brief, but the change of mentality was exquisite, Turner used the point to catch reader's curiosity in order for people to continue the story.

短的传说'手指的主要字符'包括新闻工作者- Joan希望和探险家Longsdale王子，特纳的描述在字符是简要的，但思路的变动是精妙的，特纳使用点捉住读者的求知欲为了人能继续故事。

Because the temperature along the pipeline is not a constant, it changes the velocity of the negative-pressure-wave; the Romberg algorithm of numeric integral and the searching for algorithm are emloyed to locate the leakage.Multi-scale decomposition and reconstruction of wavelet transform is applied to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of Δt in location formula, and the location accuracy is improved.

利用小波变换的多分辨分析和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行了消噪处理；并利用小波变换技术对信号奇异点快速、准确的识别能力，对经过消噪处理后的负压波信号进行了奇异点捕捉，准确确定了定位公式中上、下游站点采集到的负压波奇异点的时间差△t，从而提高了定位的精度。

Grass know, this is not the season of her pure, and certainly not her charming moments, grass Catch the present critical point, the key point is very clear, calm demeanor, Dan Ding, peace of mind, quiet, words have no slightest flicker .

小草深知，这不是她清纯的季节，当然更不是她妩媚的时刻，小草抓得住现时的关键点，关键点十分真切，举止从容、淡定，心态平和、宁静，言辞绝无丝毫闪烁。

At the same time, combining with the actual condition of delivery pipeline of our country and some prevalent leak detection and location methods, this paper raised a method, which is based on wavelet analysis and negative- pressure-wave to detect and locate the leakage. Jobs in the paper are as follows:As affected by gas density, pressure, specific heat and pipe material, the velocity of negative-pressure-wave improved depending on the energy conservation. At one time, taking the affection of velocity of gas flow, the location formula was modified in some degree.When locating the leaks with location formula, the iterative approach algorithm was adopted as a new method to increase the location accuracy level of system.Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of At in location formula, accordingly improved the location accuracy.Wavelet is a suitable tool for signal analysis. The distinct character is that the mother-wavelet is of optional. That means choosing different mother-wavelet will get different analysis result. So we studied how to choose mother-wavelet and its scale for signal singularity detection. The method is to choose a wavelet by regularities of the wavelet and the signal.Finally, a plan, which bases on SCADA system for inspection and detection of natural gas leakage, is proposed in the article.

其中，主要进行了以下几方面的工作：针对泄漏产生的负压波在管道中的传播速度受媒介的密度、压力、比热及材质等因素的影响，而非声波在空气中传播的速度，本文利用能量守恒原理，对其进行了修正；考虑到管内气体流速对压力波速的影响，对原始的负压波定位公式进行了一定程度的改进，并在利用定位公式进行泄漏点定位时采用逐步迭代逼近算法，提高了系统的定位精度；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了降噪处理；并利用小波变换技术对信号奇异点的快速、准确的识别能力，对经上述消噪后的负压波信号进行了奇异点捕捉，精确捕捉的结果提高了定位公式中上下游站点采集到的负压波奇异点的时间差△t的精度，从而进一步提高了定位的精度；考虑到小波变换是一种基波可变的信号分析工具，也就是说，不同的小波基波对信号分析的结果将有很大差别，这势必影响最终的处理结果，因此，我们又对比分析了本课题中小波基及尺度的选择问题，依据规则性系数相似性原理对母小波的选择进行了探索性研究；最后，还提出了基于SCADA的泄漏检测与定位系统的软件开发构想及系统的嵌入方案。

"We may be increasing the catch up to a point where you push something over the edge," said Andrew Rhyne, a marine biologist with Roger Williams University and the New England Aquarium who has studied the Florida invertebrate fishery.

罗杰威廉斯大学与新英格兰水族馆的海洋生物学家安德鲁E莱恩说：「捕捉量可能已到过高的程度。

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。