输送

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。

Liquid of water and bubble, which is able to bear high pressure,abrasion and cautery for a long time. The coat is thick, smooth

消防水带是消防工作中已被广泛采用以输送水和泡沫混合液进行灭火的一种软管，具有

In the fields of Resources Engineering, many applications are closely related to ceramic engineering, metallurgy engineering, chemical engineering environmental engineering.

而资源工程所涉及的领域也越来越重叠到一些其他工程领域，如陶瓷工程、冶金工程、化学工程、环境工程及生化工程动量，而与输送现象有关的动量、热量和质量传送的原理定律都可应用到这些程序的领域中。

Zhejiang permanent Machinery Group of China is the sole approved by the State Economic and Trade Commission of the Chinese chain export base, the company under the seven plants, Seiko produced "CHJC","permanent" licensing standards and chain of more than 10,000 kinds of non-standard specifications (specifications Precision sleeve roller chain, the chain plate, flat-top chain, silent chain, Shu Songlian, the Agricultural Machinery chain, chain oil, metallurgical use chain, motorcycle chain, speed chain, sprocket, coupling ......).

浙江恒久机械集团是中国唯一经国家经贸委批准的中国链条出口基地，集团公司下属七个分厂，精工制作"CHJC"、"恒久"牌标准和非标准链条10000多种规格（各种规格的精密套筒滚子链、板式链、平顶链、齿形链、输送链、农机链、石油链、冶金用链、摩托车链、倍速链、链轮、联轴器。。。。。。）。

Zhejiang permanent Machinery Group of China is the sole approved by the State Economic and Trade Commission of the Chinese chain export base, the company under the seven plants, Seiko system "CHJC","Hang the" licensing standards and chain of more than 10,000 kinds of non-standard specifications (various The precise specifications sleeve roller chain, the chain plate, flat-top chain, silent chain, Shu Songlian, the Agricultural Machinery chain, chain oil, metallurgical use chain, motorcycle chain, speed chain, sprocket, coupling .....).

浙江恒久机械集团是中国唯一经国家经贸委批准的中国链条出口基地，集团公司下属七个分厂，精工制"CHJC"、"恒入"牌标准和非标准链条10000多种规格（各种规格的精密套筒滚子链、板式链、平顶链、齿形链、输送链、农机链、石油链、冶金用链、摩托车链、倍速链、链轮、联轴器。。。。。。）。

The chironomid larvaes enter the watersupply system through transmission pipeline.

水源中的红虫随输送管道进入给水系统，其在给水处理系统中繁殖并进入管网，对水质感官指标造成了重要影响。

The circulatory system functions to convey material from one part of the body to another.

循环系统的功能是把物质输送到身体各处。

The seasonal variation of upward transport is consistent with the variation of the large scale circumfluent.

一年中冬春季向下的输送强，夏秋季较弱，其季节变化与大尺度环流的季节性变化一致。

Empty pallet stored in pallet magazine is automatically conveyed underneath the filling spout; After the bag is hung and bag mouth fastened around the filling spout manually, the bag is prepared for incoming material; Materials in the feed hopper are discharged into empty bags, then weighed by loaded pallet, weigher (standard weight 1000kg); After weighing is completed, the bag is automatically released from bag clamper and hanging apparatus in loaded pallet scale to pallet conveyors.

存贮在托盘仓库中的空托盘自动输送到装袋位置。人工把空包装袋套入装袋机下料口后，夹袋器夹住袋口，做好接受来料的准备。给料箱将物料送入空包装袋中，并利用垛盘电子称称重（标准重量1000公斤）。称重完毕，夹带器及垛盘电子称上的挂袋装置将料袋释放到托盘上。

Most of these depend heavily on Russian gas and oil. These are typically costly and come from clapped-out fields along ageing pipelines through unreliable transit countries, with unwelcome political conditions attached.

这些国家中的很大一部分及其依赖于俄国燃气和石油，又昂贵又是从破旧地区沿着老化的石油管道输送而来，还要经过靠不住的传送国家并接受它们附加的恼人的政治条件。

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。