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.

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成本推動(dòng)型通貨膨脹指主要由工資-價(jià)格螺旋上升所造成的一種通貨膨脹，包括工資的增加對(duì)生產(chǎn)成本造成的向上的壓力欧美色色色WWWC0m，引起物價(jià)上漲好在线观看视频免费不卡日本，然后工資再增加，如此循環(huán)上升又大又粗视频。

Listed companies in the manufacturing sector is the largest listed companies in Shanghai group of companies covering more than half of listed companies in Shanghai, from the overall perspective, the manufacturing sector in 2008 listed companies in the first three quarters year-on-year revenue 28% growth in net profit year-on-year increase of 16%, but the third quarter revenues increased 22 percent year-on-year, performance actually fell 16 percent,"Made in China" is facing a substantial decline in the performance situation.

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This article utilizes the literature material law, the questionnaire survey procedure, the teaching cut-and-try method carries on the analysis to the middle school sports teaching, discovered the question includes: As a result of the birth control policy implementation, in the Wei County two middle-school students the only child increases day by day, the child becomes in the family the treasure, the elder dotes on has Canada, in addition the social life level unceasing enhancement, the child nutrition surplus situation remarkable increase, a student physique front year obviously drops, therefore the middle school physical education becomes everybody attention gradually the focal point, how very good physical education, how does cause the student to like on the physical education, how finally causes the physical education to become the student to grow the growth important curriculum, namely the physical education plays truly imparts knowledge and educates people in the school should get up nurtures the human, nurtures the body the vital role.

本文運(yùn)用文獻(xiàn)資料法98超碰日本人妻，問(wèn)卷調(diào)查法国产精品三级国，教學(xué)實(shí)驗(yàn)法對(duì)中學(xué)體育教學(xué)進(jìn)行剖析，發(fā)現(xiàn)的問(wèn)題有：由于計(jì)劃生育政策的實(shí)施julia中文国产一区，威縣二中學(xué)生中獨(dú)生子女的日益增多农村女人一级毛片农村妇女，孩子成為家中之寶，長(zhǎng)輩寵愛(ài)有加久久ri国产蜜臀AV，再加上社會(huì)生活水平的不斷提高黄色禁看视频，孩子營(yíng)養(yǎng)過(guò)剩的情況顯著增加，學(xué)生體質(zhì)較前些年明顯下降呻吟人妻一级无码AV，因此中學(xué)體育課逐漸成為大家關(guān)注的焦點(diǎn)一级一级一级一级毛片，怎樣上好體育課，怎么樣使學(xué)生喜歡上體育課日韩毛片免费高清在线视频，最后怎樣使體育課成為學(xué)生生長(zhǎng)發(fā)育的重要課程欧美在线一级毛钱，即體育課真正起到在學(xué)校教書(shū)育人中所應(yīng)起到的育人、育身的重要作用26uuu亚洲欧美另类。

This article utilizes the literature material law the questionnaire survey procedure the teaching cut-and-try method carries on the analysis to the middle school sports teaching discovered the question includes: As a result of the birth control policy implementation in the Wei County two middle-school students the only child increases day by day the child becomes in the family the treasure the elder dotes on has Canada in addition the social life level unceasing enhancement the child nutrition surplus situation remarkable increase a student physique front year obviously drops therefore the middle school physical education becomes everybody attention gradually the focal point how very good physical education how does cause the student to like on the physical education how finally causes the physical education to become the student to grow the growth important curriculum namely the physical education plays truly imparts knowledge and educates people in the school should get up nurtures the human nurtures the body the vital role.

中文摘要本文運(yùn)用文獻(xiàn)資料法亚洲一区在线不卡，問(wèn)卷調(diào)查法，教學(xué)實(shí)驗(yàn)法對(duì)中學(xué)體育教學(xué)停止剖析男女插插视频，發(fā)現(xiàn)的問(wèn)題有：由于計(jì)劃生育政策的實(shí)施欧美一级A片免费观看网站，威縣二中學(xué)生中獨(dú)生子女的日益增多，孩子成為家中之寶欧美性爱久j草影院，長(zhǎng)輩寵愛(ài)有加BBIXXcom国产在线观看，再加上社。色呦呦禁止网站。欧美黄色网站网址。本文運(yùn)用文獻(xiàn)資料法，問(wèn)卷調(diào)查法色哟哟伊人，教學(xué)實(shí)驗(yàn)法對(duì)中學(xué)體育教學(xué)停止剖析免费视频黄片福利大全。，發(fā)現(xiàn)的問(wèn)題有：由于計(jì)劃生育政策的實(shí)施，威縣二中學(xué)生中獨(dú)生子女的日益增多啪啪啪免费试看，孩子成為家中之寶美女a黄色视频，長(zhǎng)輩寵愛(ài)有加，再加上社會(huì)生活水平的不斷提高久久国产乱子伦精品，孩子營(yíng)養(yǎng)過(guò)剩的情況顯著增加超碰中文字幕，學(xué)生體質(zhì)較前些年明顯下降，因此中學(xué)體育課逐漸成為大家關(guān)注的焦點(diǎn)性爱a视频，怎樣上好體育課国产在一区二区线免费视频，怎么樣使學(xué)生喜歡上體育課，最后怎樣使體育課成為學(xué)生生長(zhǎng)發(fā)育的重要課程人人操人人模人人看人人舔人人插，即體育課真正起到在學(xué)校教書(shū)育人中所應(yīng)起到的育人国产又黄又粗又长网站、育身的重要作用。

On the other hand, according to the discussion of decolonization thinking, we can review the difficulty and problems of past on historic preservation to reduce the difficulty and increase the efficiency on historic preservation in future for the government.

同時(shí)也因?yàn)槿ブ趁袼伎嫉挠懻搧覀冊(cè)谖磥?lái)從事保存工作時(shí)人妻免费一区二区三区最新，能以檢討過(guò)去的困難與癥結(jié)性問(wèn)題人禽性直播，來(lái)減低公部門(mén)在未來(lái)執(zhí)行時(shí)的困難進(jìn)而增加工作的成效。

Based on the empirical studies of arbitrage process and results on domestic convertible bond market, we have drawn the follow conclusions: on domestic convertible bond market, the arbitrage actions conducted by institutional investors help to reduce risk and increase return; meanwhile, arbitrage actions help to effectively price the bond and encourage its bonders to exercise the conversion right.

本文作者通過(guò)對(duì)國(guó)內(nèi)轉(zhuǎn)債交易市場(chǎng)中投資套利過(guò)程及結(jié)果的實(shí)證分析中国一级无码黄片，提出了研究結(jié)論：在國(guó)內(nèi)轉(zhuǎn)債市場(chǎng)中自拍偷拍欧美性爱视频，機(jī)構(gòu)投資者進(jìn)行的轉(zhuǎn)債套利操作行為有利于機(jī)構(gòu)大資金在進(jìn)行轉(zhuǎn)債投資實(shí)踐中回避風(fēng)險(xiǎn)、提高收益av一本大道香蕉大在线app；同時(shí)国产91色，套利行為可以促進(jìn)轉(zhuǎn)債有效定價(jià)并能夠推動(dòng)持債者積極轉(zhuǎn)股等。

Cylinder, the cylinder sets of radial a surplus deformation of the cylinder sets a great impact on the cylinder liner reduced radial a surplus amount to reduce the deformation of the cylinder sets, the top surface of the body decreases roughness, but it will increase the body on the plane cylinder only mouth the roughness ; Preload reduced cylinder head bolt deformation of the cylinder liner little effect, the body can reduce the top surface roughness and cylinder body on the plane I ended roughness; Shen appropriate reduced cylinder head bolt hole deep can reduce the deformation of the cylinder sets, but will cause the body and the top surface roughness on the cylinder body only I roughness increases Plane .

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The results presented in this paper indicated that sodium salt of 3,7-bishemis uccinate of 7-hydroxycholesterol (RS 634) at the dose of 45mg/kg/day (×7,ip) could increase DNA, RNA and protein syntheses in bone marrow cells and protein synthesis in liver,spleen and serum, but no markedly effects on DNA and RNA synthesis in liver and spleen of mice bearing EAC were observed, In the subacute test on rats RS 034 (400mg/kg/day, x30 ip) showed no evident effects on the number of RBC, WBC and the percentage of lym...

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Using the method integrating geoscientific research with bit selection research, analysis is made on the stratigraphic-lithologic characteristics of all geological intervals in the area, the effect on bit selection and how to increase drilling speed is made clear. Based on the above, the conceptual profiled design for bit selection and drilling methods of all geological intervals is proposed on the basis of the stratigraphic-lithologic characteristics.

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