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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.

调研发现,公开发表的文献中,目前没有文章介绍专用于气体钻井的钻柱稳定器,也没有就气体钻井使用常规螺旋钻柱稳定器对环空气体携岩举升能力造成的影响进行评价。

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-羟基琥珀酰亚胺基氨基甲酸酯为衍生剂,与毛蚶抗贫血口服液中的氨基酸柱前定量衍生,用WatersHPLC仪,AccQ-TagTM专用C18柱(3.9mm×15cm),以140mmol·L-1的醋酸钠溶液(pH5.02)为溶剂A,乙腈为溶剂B,超纯水为溶剂C,进行梯度洗脱,检测波长为248nm,35min测试完毕。

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,建模时端板与柱翼缘,角钢和T形连接件与柱翼缘和梁翼缘,螺栓头与相邻板件间,螺栓杆与孔壁间都设置了反映边界状态的接触单元。

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.

从时间分辨的X光强度轴向空间分布来看,在较长时间(约1~1.5ns)内,O带X光在整个观测缝对应的轴向范围之内均有较大的辐射强度,在X光强度空间分布的变化过程中,其强度峰值的空间位置基本不变;而对N带X光,则只在较短时间(约0.5ns)内,在整个观测缝对应的轴向范围之内可观测到X光辐射,但只在靠近输运源约300μm的范围内有较强发射,在柱腔末端600~700μm范围之内的辐射则很弱,N带X光辐射轴向空间分布曲线的峰值位置在朝柱腔末端的方向移动,移动量大约为130~250μm。

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.

本文以现行规范为依据,以混凝土强度理论推导出的轴心抗压混凝土柱的承载力计算公式作为约束条件,以造价为目标函数,以混凝土中的钢筋直径、混凝土强度等级为设计变量,对其进行优化设计得到了满足使用条件下的最优基本参数,为轴心受压混凝土柱的设计提供了较好的计算依据。

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.

本文对在钻井过程中由于牙轮钻头与岩石互作用及钻柱的弹性变形导致牙轮钻头和钻柱在钻井过程的振动问题进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.

本文对在钻井过程中由于牙轮钻头与岩石互作用及钻柱的弹性变形导致牙轮钻头和钻柱在钻井过程的振动问题进行了深入地分析研究。

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.

在此过程中,用外径千分尺和内径千分表多次准确测量柱塞的外径尺寸和椭圆度,和缸体孔孔径、锥度,使所选配的柱塞和缸体孔的配合间隙达到0.02_0.4mm的要求。

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

在深井、超深井、大斜度井、大位移井及水平井中,钻井时间延长、钻柱作用在套管上的侧向力增高,因此套管和钻柱的摩擦与磨损问题越来越突出。

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、大斜度井、大位移井及水平井中,钻井时间延长、钻柱作用在套管上的侧向力增高,因此套管和钻柱的摩擦与磨损问题越来越突出。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。