Assuming a condition cont-rol reserve calculation,combimatively solve the material balance equation of gas recovery and binomial gas recovery equation for gas well,calculate the production curve of gas well and match it with the actual production curve,finally determine the reserve and productivity parameter,this method doesn't need much pressure build-up data,and can calculate the c...

該方法的推導(dǎo)思路是：假設(shè)在某一控制儲量條件下，聯(lián)立求解氣藏物質(zhì)平衡方程式和氣井二項式采氣方程91情侣偷在线精品国产，計算氣井采氣曲線并將其與實際的采氣曲線相匹配，最后確定儲量、產(chǎn)能參數(shù)曰韩视频第一页。該方法不需要較長的多次關(guān)井復(fù)壓資料，在氣藏受水驅(qū)影響較小時，還可計算一口探井或氣藏試采早期所反映出的氣井控制儲量亚洲欧美啊啊啊啊久久久，在氣藏生產(chǎn)中得到應(yīng)用欧美一级A片免费不卡全部完曰久，計算結(jié)果較為可靠

As the equation of the curve determined by companion centers shows, our main result is that the set of all companion centers of a nonisosceles triangle is the unique equilateral hyperbola, called the hyperbola of , passing through the vertices ,, and the barycenter of .

透過伴心軌跡方程式我們得到主要結(jié)果如下：非等腰三角形的伴心所成的集合是一個通過三頂點、欧美操屄、及重心唯一的等軸雙曲線国产乱子伦牲交视频，稱為的雙曲線。

Based on the structure of a non-tracking internal-concentrator solar PV-thermal tube collector and the absorber design requirements, the optical design for the compound parabolic concentrator with half cylinder absorber is proposed to improve the solar energy efficiency. Matlab software was used for the optimization and simulation of the concentrator curve and shape. The curve equation of concentrator for maximum incidence of light of the collector was obtained; and the installation locations for CPC/half cylinder absorber and the necessary CNC processing parameters were optimized.

針對非跟蹤內(nèi)聚光光電－光熱復(fù)合管的結(jié)構(gòu)及接收器的設(shè)計需求外国熟妇性交，對管內(nèi)具有特殊形狀的半圓柱接收器的復(fù)合拋物面聚光器進行了光學(xué)設(shè)計城中村嫖娼吊带，并利用Matlab軟件對聚光器曲線和形狀進行了優(yōu)化與數(shù)據(jù)仿真，得到了光熱復(fù)合管能夠得到最大入射光的聚光器的曲線方程黄色激情视频网站、安裝位置以及供數(shù)控機床加工所需的參數(shù)亚洲欧洲成人在线观看，給出了不同入射角的光線和光強分布圖，提高了太陽能的利用率性爱网址大全。

According to the plane cross section assumption, configuration of a rod is expressed as a history of the cross section with arc coordinate. A special solution which stands for equilibrium in straight line state is obtained from differential equilibrium equation. Linear perturbation equation is derived and its general solution is obtained in which the integral constants are determined by constrained conditions at two ends of the rod. The condition of existence of non zero solution of the integral constants gives to the Greenhill formula of exact elastic rod model, which shows that the boundary of stable area is a closed curve and of symmetry, and inference of shearable and extensible to stability of the rod is depend on three factors: difference between flexibility of shear and extension of a section of the rod, bending stiffness and the length of the rod.

基于平面截面假定又黄又爽爽女性爽喷水视频，彈性桿的位形表達為截面的弧坐標(biāo)歷程，根據(jù)平衡微分方程得到了兩端受力螺旋作用時的直線平衡特解日韩视频精品第一页在线观看网站，導(dǎo)出了線性化擾動方程及其通解久久国产精品电影网，積分常數(shù)根據(jù)兩端鉸支時的邊界條件確定，并根據(jù)其存在非零解的條件得到彈性直桿精確模型的Greenhill公式AV福利网站，表明穩(wěn)定域為一對稱的封閉區(qū)域嗷嗷喷水，拉/壓和剪切對穩(wěn)定性的影響取決于：拉/壓柔度與剪切柔度之差，抗彎剛度和桿長這三個因素

When the geometric similitude ratio of the model to the prototype was determined and the loading similitude condition was satisfied by using similitude theory in structure modeling and experimental techniques, the prototype soil parameters were derived according to the model test result. The vibrating wheel compelled by harmonic exciting force was treated as a lumped mass vibrating system by equation equity method. By using this mechanical model in vibrating compaction, soil parameters were identified according to the equivalence of vibrating differential equation. The curve fitting method of amplitude versus frequency response was used for dynamic simulation based on the systematic dynamic equation of vibrating roller-soil system.

用相似理論與模型試驗法在確定了模型與原型之間的幾何相似比并滿足載荷相似條件后www.国产盗摄.com，根據(jù)模型試驗結(jié)果推導(dǎo)出了原型土體參數(shù)日韩一区二区无码影视大全；用方程對等法把受簡諧激振力作用的振動輪等效為集中質(zhì)量振動系統(tǒng)，以此作為振動壓實過程的力學(xué)模型五月婷婷超碰在线，根據(jù)振動微分方程的等效條件進行識別麻豆国产香蕉久久精品；用幅頻特性曲線擬合法以振動壓路機－土壤系統(tǒng)動力學(xué)方程為基礎(chǔ)，用計算機進行動態(tài)仿真国产高清一级做a爱在线观看。

The beginning of this article gives the definition of elliptic curve, ellipse standard equation, and the long axis of oval, short, with an area of the formula of a binary quadratic equation of the circumstances under which the judge said to provide the basis of an oval, as well as the conditions in this the long axis of the ellipse, short, with an area of what is the formula?

本文開始給出了橢圓曲線的定義真人实拍AV在线播放，橢圓的標(biāo)準(zhǔn)方程，及橢圓的長軸国产精品永久免费高清，短軸亚洲综合无码一区二区毛片，面積公式，對一個二元二次方程在什么情況下表示橢圓提供了判斷依據(jù)免费无码中文A级毛片，以及在此條件下的橢圓的長軸黄色一级毛片午夜直播，短軸，面積公式是什么99re视频2这里只有精品？

It is demonstrated in this paper that the P-V-T relation below the melting temperature 1 336.4 K can be described by the universal equation of state for solids proposed by Vinet et al,while for temperatures higher than the melting point,we proposed a new equation of state for solid Au,taking the melting curve as the reference state,for the description of the high pressure and hig...

結(jié)果表明久久只出精品，在熔點1 336.4 K以下黄色网站在线观看免费观看免费，壓強-體積-溫度關(guān)系可以用Vinet普適狀態(tài)方程來描述，而對于在熔點溫度以上日日日射夜，本文提出了一個以熔化曲線作基準(zhǔn)的高溫高壓下固態(tài)Au的狀態(tài)方程99偷拍精品视频。數(shù)據(jù)擬合結(jié)果說明了提出的固體狀態(tài)方程對固態(tài)Au是適用的。

It is demonstrated in this paper that the P-V-T relation below the melting temperature 1 336.4 K can be described by the universal equation of state for solids proposed by Vinet et al, while for temperatures higher than the melting point, we proposed a new equation of state for solid Au, taking the melting curve as the reference state, for the description of the high pressure and high temperature behavior.

結(jié)果表明欧美黄色视频和网站，在熔點1336.4K以下5060黄片，壓強－體積－溫度關(guān)系可以用Vinet普適狀態(tài)方程來描述，而對于在熔點溫度以上男女做爽爽爽视频免费网站，本文提出了一個以熔化曲線作基準(zhǔn)的高溫高壓下固態(tài)Au的狀態(tài)方程伊人夜夜。

The contents are: measure and tuning of accelerating cavities, coupling cavities, measure of quality, field distribution, dispersion curve . and the way of measuring and eliminating the stop band, etc. At the same time, utilizing the test data and the dispersion equation of cavity chain, we make a fit dispersion curve by way of least squares fit, and we work out the width of stop band and the intercavernous coupling coefficient.

內(nèi)容包括：加速腔頻率韻測量和調(diào)諧、耦合腔頻率的測量和調(diào)諧ACG邪恶全彩邪恶帝绅士库韩国、品質(zhì)因素的測量日韩一级A片在线视频免费网站、場分布的測量、色散曲線的測量在线观看91精品国产、禁帶的測量和消除等在线a黄网站，同時，論文還從腔鏈色散方程和測得的實驗數(shù)據(jù)出發(fā)黄片在线免费无码，利用最小二乘法進行擬合得到擬合色散曲線欧美高潮喷水视频，并計算出禁帶的大小和腔間耦合系數(shù)。

By the use of Circling cluster and Envlopment theory and flat surface sit-mark transformation theory, the chain wheel tooth equation of roller chain at high speed to match conjugage engagement is deduced.Establishing chain speed equation of roller chain at high speed,based on the analysis of the speed curves between roller chain at high speed and common roller chain,good drive of roller chain at high speed is verificated theoretically.By a example that move distance from transverse vibration between roller chain at high speed and common roller chain is contrasted,the accuracy of those theories that the paper brings up and higher functions of roller chain at high speed is proved.Finally, Establishing conjugage engagement line equation of roller chain at high speed and analyzing the complete engagement zone, the chain wheel tooth curve equation is studied at a higher degree. At the same time,the lack's place of the research result is pointed out.

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