查询词典 screw up

It is shown that the contact interaction enables bottom drillstring to whirl backward, and then an alternate bending stress with higher frequency is produced. So the drillstring fatigue failure could be accelerated. At the same time, a quite strong wallop force of high frequency is produced on the contacting point, and the contacting zone is next to the screw coupling of drill collars. It will easily result in the failure of screw couplings. The research results provide theoretical basis for the prevention of drillstring failure.

研究表明，下部钻柱与井壁的碰摩作用使下部钻柱反向涡动，产生高频的交变弯曲应力，会加速下部钻柱疲劳破坏；下部钻柱与井壁接触点处存在较大的高频冲击力，并且接触区域靠近钻铤螺纹联结处，更容易诱发螺纹联结处失效，该研究成果可为预防钻柱失效提供理论依据。

The VCL method and the displacement method are used to calculate the Stress Intensity Factors of semi-elliptical surface crack at the root of pipe screws, on the basis of which a simplified calculating model for screws contact is put forward so as to analyse the fracture intensity for oil drill pipe screw coupling. For the semi-elliptical surface crack with different shape and deep ratio at the root of female and male screws and the corner of male flange, the SIF has been studied systemically under inter-pressure, tension, bend and torsion loads and the approximate formulas encluding the structure parameters of oil drill pipe screw coupling, deep ratio and the shape parameters of surface crack are developed.

对工程实际中的多种石油钻杆接头螺纹连接件，就公螺纹齿根、母螺纹齿根、公螺纹台阶转角处存在的不同形状、不同厚度比的半椭圆表面裂纹，在拉伸、内压、弯曲、扭转多种载荷作用下的应力强度因子作了系统研究，在大量有限元计算基础上，建立了包含接头结构参数、裂纹形状、厚度比在内的近似计算公式。

Machine drive principle: No matter it is mono-block type or detached type, we take electromotor as original motor to convey the power to retarder input shaft (high-speed rotation axle) through direct connection or triangular belt and retarder output shaft (low-speed rotation shaft) connects directly with the joint screw or low-speed rotation shaft connects with the main shaft joint screw through coupling thrust bearing socket.

机械传动原理：本司产品无论是整体式的还是分体塑料再生机，均以电动机为原动机，通过直连式或三角带将电动的力传递给减速器轮入轴由减速器输出直通联接螺杆或经低速轴通过联轴器止推轴承座主轴联接螺杆，使螺杆按设计要求及生产工艺要求的扭矩和转速匀速地旋转，以达到塑料塑化后定压、定量、均匀地连续挤出的目的。

The study on drilling collar screw-stick,analysis of drilling collar screw thread and test of material and thread parameter have been done.

对钻铤粘螺纹事故进行了调查研究，并进行了宏观形貌和材质分析；对新钻铤材质和螺纹参数进行了检验，并采用不同旋螺纹扭矩对新钻铤试样进行了上卸螺纹试验。

The concrete steps are: the lactic acid and small-molecule dicarboxylic acid react under the condition with the presence of the catalyst to directly polymerize the carboxyl-terminated lactic acid prepolymer; then the aliphatic polycarbonate diol and the catalyst are added; with the presence of the N2, the reaction is kept for 1 to 10 hours at the temperature of 150 to 200 Celsius system to get the poly lactic acid and polycarbonate copolymer of the low molecular weight; then the reaction is done in the twin-screw extruder at the temperature of 150 to 190 Celsius system to screw out the extension chain; finally the polylactic copolymer of the high molecular weight, toughness and heat resistance is made.

具体步骤是：乳酸和小分子二元酸在催化剂条件下反应直接缩聚合成羧基封端的乳酸预聚物，然后加入脂肪族的聚碳酸酯二元醇和催化剂，在N 2 气氛下，抽真空，在150～200℃温度下，反应1～10小时，得到低分子量聚乳酸/聚碳酸酯共聚物，然后在双螺杆挤出机中在140～190℃下，进行反应挤出扩链，最终得到高分子量的、韧性与耐热性较好的聚乳酸共聚物。

There is great suitability of C(subscript 2/3) transarticular screw fixation, and it could be used as an alternative screw anchor point for posterior cervical instrumentation.

经C(下标 2/3)侧块关节进行螺钉固定在解剖学上是可行的，可以作为枢椎后路螺钉固定的补充方法。

Methods 14 cases of simple PCL tibial attachment avulsion fracture were undergone open reduction and cannulated screw line, anchor screw fixation of meniscus injury from the merger to be repaired during operation, and early postoperative functional exercises were permitted.

对14例单纯PCL胫骨附着部撕脱骨折行切开复位空心钉、锚钉内固定，对合并半月板损伤者术中予以修补，术后早期进行功能锻炼。

Large-scale machinery Series - grille decontamination machine, non-axis spiral sand water separator, non-axial screw conveyor, screw press machine, conveyor belt, filter press, filter, etc..

大型机械系列——格栅除污机、无轴螺旋式砂水分离器、无轴螺旋输送机、螺旋压榨机、皮带输送机、压滤机、过滤器等。

Unscrew the adjustment screw ring, stretching from the exposed screw people like a thin iron tool, you can toggle adjustment ring on the teeth, so that adjustment ring turning left.

拧下调节圈固定螺钉，从露出的螺孔伸人一根细铁棍之类的工具，即可拨动调节圈上的轮齿，使调节圈左右转动。

3 Open the regulator and the nozzle ring ring screw fixation screws; 1.3.4 release and remove the valve cover nut; 1.3.5 screw bolts with rings at the stem, from the valve assembly of the upper part of the body perpendicular to bring devices; when the upper part of unit from the valve body will be raised when the stem or any part not allowed to have any sway movements, any shaking could damage to the valve seat.

1.3.3 拆开调节环固定螺丝和喷咀环固定螺丝； 1.3.4 松开并拆下阀盖螺母； 1.3.5 用吊环螺栓拧在阀杆上，从阀体内垂直提起组装的上部装置；当从阀体内将上部装置提出来时，不允许阀杆或任何部件有任何的摇摆动作，任何摇动都可能损坏阀座。

We stopped by the old fashion ice cream parlor Manhattan Beach Creamery for some refreshment. The "No Shoes, No Shirt, No Problem" sign on the wall epitomizes the beach lifestyle.

我们去商店区的一家老式冰淇淋店坐坐，墙上挂著「没鞋，没上衣，没问题」的牌子完全捕捉了海滩生活的随性及风格。

"If therefore", argues Bellarmine we can offer our prayers and our satisfactions in behalf of those detained in purgatory, because we are members of the great body of Christ, why may not the Vicar of Christ apply to the same souls the superabundant satisfaction of Christ and his saints--of which he is the dispenser?

" "因此，如果"，认为贝拉明（德indulgentiis ，十四）"我们可以提供我们的祈祷和我们满意的代表那些被拘留在炼狱，因为我们是成员的伟大基督的奥体，为什麼可能不是牧师基督适用於同样的灵魂满意的过剩是耶稣和他的圣人-他是在配药？