The elastic stress diagram design method is behind the times and cant meet the command in practice.In the paper the author collected and analyzed a large amount of data about the SLRCP on several typical domestic model experiments and the projects in practice. By summarizing and analyzing the data, the author set up a typical computing model and analyzed the model by the software ANSYS, by reading the output data of the stress and the crack from the program, combined with the experimental results, the author summarized the destroy procession of the stock. The paper also discussed the influence of other main factors to the crack and the stress besides the internal water pressure, such as the concrete material, the dimension of stock and the way of laid-out steel bars.

本文通過對大量實際工程中的壩后背管資料的收集未满黄色网站、歸納和分析特级毛片全部免费播放在线，選取了具有代表性的計算模型国产一伦一色一情；用有限元軟件ANSYS計算了典型壩后背管結(jié)構(gòu)在實際內(nèi)水壓力作用下的應(yīng)力分布和裂縫發(fā)展情況3D动漫同人H无码精品；以國內(nèi)幾個有代表性的模型試驗和有限元計算的成果為依據(jù)一级av中文字幕αV一级，分析了在內(nèi)水壓力作用下鋼襯鋼筋混凝土壓力管道管壁裂縫的特點精精国产XXXX视频在线直播1，并嘗試總結(jié)出此種管道的裂縫出現(xiàn)的原因及其發(fā)展規(guī)律，同時確定了壩后背管結(jié)構(gòu)極限狀態(tài)的新的定義方式——以壩后背管的裂縫寬度來定義国内一级a爱片在线观看。

It is found that the overall heat transfer coefficient of elliptic cylinder with k.0 is higher than that of a circular cylinder.At k=6.0,it has the maximum which is about 1.6 times that of a circular cylinder.At the same time,the drag coefficient drops down with the increase of k.For k=2.0,the drag coefficient is about 60％ that of a circular cylinder.

當(dāng)k.0時欧美一级片在线视频网站，橢圓管的平均對流換熱系數(shù)高于圓管；當(dāng)k=6.0時欧美日韩综合自拍小说，達到最大值爱搞,为爱搞点激情，大約為圓管的1.6倍，同時久久久久精品高清播放一区，其阻力系數(shù)隨著k的增大而減幸股＠夥淹吃谙呤悠怠；當(dāng)k=2.0時97在线看视频道福利免费，阻力系數(shù)約為圓管的60％又粗又大又爽。

ABSTRACT Objective To discuss the importance of the study of conformation and variation of extrahepatic bile duct before gallbladder operationMethods The images of 100 cases having normal structure of gallbladder and extrahepatic bile duct were studied;the conformations and confluence sites were analyzedResults Among the 100 cases,97 cases had clear images of extrahepatic bile duct (97%),3 cases with large amount of air bulbs in bile duct because of the laxation of the lower common bile duct still had clear images of the general conformation of extrahepatic bile duct,87 cases had clear images of gallbladder and cystic duct (87%),13 cases (13%) had partial images of gallbladder or cystic ductConclusions ERCP can clearly show out the conformation and variation of extrahepatic bile duct and cystic duct and it is of important value before gallbladder operation

目的 通過對100例膽囊及肝外膽管正常結(jié)構(gòu)尚存在的患者ERCP圖像資料進行歸納和分析，探討膽囊手術(shù)術(shù)前了解肝外膽道系統(tǒng)形態(tài)及變異的重要性一级特黄无费真人毛片。方法選出100例膽囊及肝外膽管正常結(jié)構(gòu)尚存在的患者圖像国产日韩欧美专区，對其形態(tài)、匯合位置進行分析被操出白浆视频。結(jié)果 100例患者圖像中肝外膽管顯示清晰者97例(97%)国产精品口爆一区二区，3例因膽總管下端開口松弛導(dǎo)致大量氣泡進入膽道，但肝外膽管大體形態(tài)顯示尚清晰天堂网在线视频精品，膽囊及膽囊管顯示清晰者87例(87%)欧美变态另类熟妇第一区，13例(13%)僅部分顯示膽囊或膽囊管。結(jié)論 ERCP可以清晰顯示肝外膽管及膽囊管的形態(tài)及變異情況97超碰刺激国产受不了，對于膽囊手術(shù)術(shù)前了解肝外膽道系統(tǒng)形態(tài)及變異有重要價值www.日日干.com。 ERCP；膽囊管亚洲成色在线综合网站2018站；肝外膽管

BACKGROUND: According to traditional theory of the recovery after acutetubular necrosis, reconstruction of renal tubule is dependent on residual epithelialcells next to the necrosis region. Undergoing the process of dedifferentiation,proliferation and redifferentiation, these cells can reestablish the injured tubule and itsfunction.

背景：傳統(tǒng)的急性腎小管壞死修復(fù)理論認為百度搜(人人肉人人摸人人操)，腎小管的重建依賴于壞死區(qū)周圍存活的腎小管上皮細胞，這些細胞經(jīng)過去分化亚洲一级黄色网站在线观看、增殖和分化成熟等過程修復(fù)壞死的腎小管91精品免费视频福利，重建其組織結(jié)構(gòu)和功能国产欧美日韩高清乱码。

Based on thermodynamics and thermo-acoustics, the effect of the pulse tube structure was analyzed. It was found that the cross sectional area of the pulse tube influence greatly the working fluid pressure and temperature distributions.

結(jié)合熱力學(xué)和熱聲學(xué)兩方面的理論，對脈管制冷機中脈管的結(jié)構(gòu)進行了分析777色，發(fā)現(xiàn)脈管的截面積與其內(nèi)工質(zhì)壓力黄色网站一级二级三级视频、溫度分布匹配與否，對脈管制冷機的性能有很大影響人成视频在线免费观看观看。

It is indicated that the updrafts of the Arabian Sea meridional cell tube and the south zonal cell tube arrive in the SCS at the same time in May, which brings strong convective precipitation. Meanwhile, the westerly of the meridional cell tube and the southerly of the south zonal cell tube combine together to form the southwesterly at the low levels, resulting in the onset of the SCS monsoon.

研究發(fā)現(xiàn)阿拉伯海經(jīng)向環(huán)流管的上升氣流和南半球緯向環(huán)流管的上升氣流在5月份同時到達南海线上激情av网站，經(jīng)向環(huán)流管低層的偏西風(fēng)和緯向環(huán)流管低層的偏南風(fēng)共同組成西南風(fēng)，于是5月份西南季風(fēng)在南海地區(qū)首先爆發(fā)狼友网站在线观看入口。

The temporal and spatial distribution of SMP in tomato root zone and the correlation between tomato evaportranspiration and SMP variations were analyzed. The results showed that the variation of SMP among the soil profiles of 0, 15 and 30 cm from drip tape was insignificant, and the horizontal distance of tensiometers to drip tape had little effect on the correlation between tomato ETa and SMP variations. Lateral depths significantly influenced SMP from 20 to 70 cm soil layer and there were obvious effects of tensiometer depth on the correlation between tomato ETa and SMP variations.

對番茄根區(qū)土壤基質(zhì)勢時空分布和番茄耗水量與土壤基質(zhì)勢變化的相關(guān)性分析表明精品一区视频，水平距毛管0、15和30 cm 3個剖面間土壤基質(zhì)勢差異較小717欧美，負壓計距毛管的水平距離對耗水量與土壤基質(zhì)勢變化的相關(guān)程度影響不大久久精品黄色；毛管埋深對20～70 cm土層土壤基質(zhì)勢影響顯著自拍偷拍亚洲专区图片，負壓計埋置深度對耗水量與土壤基質(zhì)勢變化的相關(guān)性影響顯著黄情纯女人网站，應(yīng)依據(jù)毛管埋深確定負壓計適宜埋置深度。

Methods 169 patients underwent subclavian venepuncture in the treatment of bone marrow transplantation.78 of them were designed as study group and 91 patients as control group.In study group,the technique of inserting catheters was improved as comparison as routine method.

將169例鎖骨下靜脈插管的患者按不同的插管方法進行分組：試驗組（78例）和對照組（91例）天天舔天天干，對照組按常規(guī)的插管方法進行插管日韩精品在线网址，試驗組在常規(guī)的操作方法上進行了改進。

There are many merits of autofrettage of the composite material barrel with metal inner. One of them is that it can increase the elastic-plastic strength limits and possesses higher anti-plastic failure properties than pure metal barrels.

對帶金屬內(nèi)襯的復(fù)合材料身管可以直接免费看黄的网站，自緊有許多優(yōu)點网站一区啪啪啪，一方面可以提高身管的彈塑性強度極限，且經(jīng)處理后的復(fù)合材料身管比純金屬身管具有更高的抗塑性破壞能力三级特级婬国产高清。

The outside sealing component -corrugated tube of valve can affect outside sealing properties of valve. Through finite element analyse of stress state of corrugated tube, the stress status which are under stretch, compress and stretch-compress action are obtained. Combined with test, the stability, detonation pressure and rigidity of corrugated tube are analyzed. The result showed that corrugated tube is safety under working pressure and when stretch-compress displacement is less than 60% of maxmium displacement.

作為閥門外密封元件的波紋管是影響閥門外密封性能的關(guān)鍵部件成年人啪啪视频无码，通過對波紋管進行有限元分析，初步掌握了波紋管在拉伸美国黄色一片、壓縮以及拉伸壓縮共同作用下的應(yīng)力狀況18以下勿进色禁网站色费看，同時采用有限元計算和試驗相結(jié)合的方法，分析了波紋管的穩(wěn)定性A片欧美另类拳头交在线视、爆破壓力女同日韩性爱、剛度等，結(jié)果表明欧美顶级性交，波紋管在工作壓力下色综合久久88色综合久久天天，拉伸和壓縮量達到許用位移的60%時，波紋管工作仍是安全的男人日皮大片久久，為閥門開啟量的確定提供了理論依據(jù)欧洲黄色a片。