The research shows that there is not any published article introduce stablizer that used in gas drilling, thus there is no evaluation about the conventional auger drill stabilizer's impact on cutting-carrying and lifting ability of the annulus gas.

調(diào)研發(fā)現(xiàn)亚洲一级国产视频，公開發(fā)表的文獻中91精品露脸在线观看，目前沒有文章介紹專用于氣體鉆井的鉆柱穩(wěn)定器亚洲欧美综合在线天堂，也沒有就氣體鉆井使用常規(guī)螺旋鉆柱穩(wěn)定器對環(huán)空氣體攜巖舉升能力造成的影響進行評價成人精品视频在线日韩免费观看网站。

The determination of amino acids in blood clam antianaemia oral liquid using HPLC-AccQ-Tag method is reported. The oral liquid reacted with 6-aminoquinolyl-N-hydroxysuccini-mdyl carbamate. Then, the corresponding derivatives were analyzed with an HPLC. The chromatographic conditions were AccQ-TagTM C18 column for amino acids analysis (3.9mm×15cm); mobile phase of program elution sodium acetate solution(pH5.02), acetonitrile, Milli-Q water. The amino acids'AQC deriatives were detected at 248nm with a UV-detector. Eighteen kinds of amino acids were completely determined in 35 minutes.

以6-氨基喹啉-N-羥基琥珀酰亞胺基氨基甲酸酯為衍生劑，與毛蚶抗貧血口服液中的氨基酸柱前定量衍生成年人视频免费在线看，用WatersHPLC儀韩国三级电影网站，AccQ-TagTM專用C18柱(3.9mm×15cm)，以140mmol·L-1的醋酸鈉溶液(pH5.02)為溶劑A伊人国产在线观看，乙腈為溶劑B欧美大片免费久久精品三p，超純水為溶劑C，進行梯度洗脫黄视频在线品，檢測波長為248nm亚洲日韩欧美精品，35min測試完畢。

Contact elements are set between end plate, angles, T-stub and column flange, screw cap and neighborhood plane, bolt bar and hole.

分析中日韩中文无码手机下载网站大全，建模時端板與柱翼緣查找黄网站，角鋼和T形連接件與柱翼緣和梁翼緣，螺栓頭與相鄰板件間国产精品国产三级传区网站，螺栓桿與孔壁間都設(shè)置了反映邊界狀態(tài)的接觸單元欧美特黄性交片。

5Ns. The peak position of N band emission as well as the distinct emission region slightly moves towards the open end of the cylindrical cavity, and this does not happen to O band emission. Radiation transport efficiency of 6% is obtained for the φ400×1200um cylindrical cavity heated by x-ray source with radiation temperature of 118 eV.

從時間分辨的X光強度軸向空間分布來看，在較長時間（約1～1.5ns）內(nèi)久久精品中文视频，O帶X光在整個觀測縫對應(yīng)的軸向范圍之內(nèi)均有較大的輻射強度熟女91九色地址，在X光強度空間分布的變化過程中，其強度峰值的空間位置基本不變欧美亚洲日韩国产精品第6页；而對N帶X光日韩精品短片影院在线播放视频免费，則只在較短時間（約0.5ns）內(nèi)，在整個觀測縫對應(yīng)的軸向范圍之內(nèi)可觀測到X光輻射一级免费ww视频，但只在靠近輸運源約300μm的范圍內(nèi)有較強發(fā)射花蝴蝶免费视频高清版下载，在柱腔末端600～700μm范圍之內(nèi)的輻射則很弱，N帶X光輻射軸向空間分布曲線的峰值位置在朝柱腔末端的方向移動青草线观看免费观看视频，移動量大約為130～250μm美国一级A片AAA欧美。

this paper basis on the current codes,taking axis compressive resistance concrete column bearing capacity formula as constraint condition., taking cost as objective function, taking reinforcement diameter and concrete strength grade as design variables, giving an optimization design, got the best basic parameters which satisfied application conditions,to provide better calculation for the axis compressive resistance concrete colum design.

本文以現(xiàn)行規(guī)范為依據(jù)，以混凝土強度理論推導(dǎo)出的軸心抗壓混凝土柱的承載力計算公式作為約束條件，以造價為目標(biāo)函數(shù)日韩一级黄色视频在线观看91，以混凝土中的鋼筋直徑亚洲天堂在线地址、混凝土強度等級為設(shè)計變量，對其進行優(yōu)化設(shè)計得到了滿足使用條件下的最優(yōu)基本參數(shù)久久综合色之，為軸心受壓混凝土柱的設(shè)計提供了較好的計算依據(jù)插女人下面。

In this paper, the vibration characters of the Roller Cone Rock Bit which are caused by interaction bit/formation and elastic deformation are analyzed and studied deeply and in detail.

本文對在鉆井過程中由于牙輪鉆頭與巖石互作用及鉆柱的彈性變形導(dǎo)致牙輪鉆頭和鉆柱在鉆井過程的振動問題進行了深入地分析研究。

With the geometry model of the roller cone rock bit and kinematics model, by setting up rock failure model of bottom rock and interaction model between teeth and rock, the interaction dynamic modeling of Bits and rock is established in the process of petroleum drilling.

本文對在鉆井過程中由于牙輪鉆頭與巖石互作用及鉆柱的彈性變形導(dǎo)致牙輪鉆頭和鉆柱在鉆井過程的振動問題進行了深入地分析研究在线播放欧美9797影院。

In the process,with the outer diameter and inner diameter dial gauge micrometer accurate measurement of the plunger several times in size and ellipticity,as well as cylinder boreSlurry pumps diameter,taper,so that the piston and cylinder are matching with the clearance hole achieve 0.02_0.4mm requirements.

在此過程中强奸乱伦免费视屏，用外徑千分尺和內(nèi)徑千分表多次準確測量柱塞的外徑尺寸和橢圓度中文字幕一级毛片在线，和缸體孔孔徑国产真实乱子精品视频、錐度，使所選配的柱塞和缸體孔的配合間隙達到0.02_0.4mm的要求女子一级裸体毛片高清视频网站。

ABSTRACT Drilling time will be lasted and lateral force on casing exerted by drill pipe will increase in case of drilling deep well, ultrad...

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Drilling time will be lasted and lateral force on casing exerted by drill pipe will increase in case of drilling deep well, ultradeep well, high inclined hole, extended reach well and horizontal well, therefore, friction and wear between casing and drill pipe became a severe problem.

在深井、超深井人人摸人人爽一及片、大斜度井91色视在线网站免费观看、大位移井及水平井中，鉆井時間延長无码一区二区三区av免费、鉆柱作用在套管上的側(cè)向力增高夜夜摸天天做天天爽免费视频，因此套管和鉆柱的摩擦與磨損問題越來越突出。