使堵塞

The conclusions can be drawn through numerical simulation: The hydrate-forming region becomes small with increasing circulation rate and inhibiter concentration, and it is possible to make the hydrate-forming region away from sea floor by increasing circulation rate and inhibiter concentration, thus preventing blowout preventer lines from hydrate plugging; the decrease in gas volume fraction in the annulus due to hydrate formation reduces pit gain, which can delay the detection of well kick; the possibility of hydrate presence at a relatively low gas production rate is much greater than that at a relatively higher production rate; the bottom hole pressure is affected little by hydrate phase transition, and it is allowable not to consider hydrate phase transition when the bottom hole pressure is calculated; shut-in casing pressure cann't truly reflect gas kick due to hydrate formation and the situation is getting worse with time

模拟计算结果表明：溢流期间，天然气水合物的生成区域会随着循环流量的增大或抑制剂浓度的提高而减小，可通过增大流量和抑制剂浓度使水合物的生成区域脱离海底，减小防喷器管线被堵塞的危险；水合物的生成使环空中气体体积分数降低，泥浆池增量减小，给溢流检测带来延迟；当检测到有气侵发生时，水合物藏分解速率比较小时，井筒中生成水合物的可能性要比分解速率大的情况下更为严重；水合物相变对井底压力的影响较小，在工程中计算井底压力时可以忽略；由于天然气水合物的生成使得关井套压值不能真实反应气侵情况，而且随着时间的增加情况会更加严重。

It was found that Pd-Co/active carbon catalyst was the optimal catalyst, and Pd-Co/γ-Al2O3 was also good, but silica and kieselguhr were not proper carriers for the object reaction, because of their stronger surface acidity, which could result in the formation of polymer, jammed the micro pores of catalyst, and then resulted in its deactivation. Addition of Bi, Ce and Cu promoters could not improve the activity of catalyst, but La and Ba promoter could enhance the activity of catalyst apparently, and the Co was the best promoter, especially Co was impregnate in advance. It was attributed to that the pre-impregnated Co may occupy the micro pores of active carbon, and cover some bad functional groups on the surface of catalyst, so that the active and selectivity of catalyst could be enhanced obviously.

研究结果表明，Pd-Co/活性炭催化剂是目标转移加氢反应的最适宜催化剂，Pd-Co/γ-Al203效果也较好，而硅胶和硅藻土由于表面酸性较强，容易造成生成聚合物而堵塞催化剂微孔、使催化剂迅速失活；此外，添加Bi、Ce、Cu等助剂时对活性并无改善作用，而添加La和Ba助剂时可使Pd的催化活性有所提高，效果最好的是Co助剂，尤其是先浸渍Co的Pd-Co/C催化剂，原因是Co占据了活性炭的微孔、覆盖了某些对目标反应不利的官能团，使其活性和选择性都有较大幅度的提高。

The plug is used along with downhole eccentric water distribution device. When the pressure of produced fluid and the water-absorption ability of the reservoir change, the plug regulates automatically the size of the fluid outlet by means of the action of the slide valve and balance spring, thereby a stable flow rate can be obtained.

这种堵塞器与井下偏心配水器配套使用，当注水的来液压力或地层的吸水能力改变时，通过堵塞器内滑阀和弹簧的作用，自动调节出液口的大小，使水嘴前后压差基本保持不变，起到保持流量稳定的作用。

These dirt and calcium magnesium soap of material in the skin glands clogging opening, not only the discharge passage clogged skin, skin, embolize, also affect the normal metabolism of skin, make skin ageing, prematurely atrophy.

这些污垢与钙镁皂形成的黏性物质堵塞在皮肤腺的开口处，不仅堵塞了皮肤的排泄通道，形成栓塞，刺激皮肤，还会影响皮肤的正常代谢，使皮肤过早地萎缩、老化。

This project installs cyclone separator behind the carbueter of vaporization section in residue-type chemical fertilizer ammonia plant and revamps the carbueter structure so that the ash flows with cooling water to the separator instead of remaining in the carbueter.

渣油型化肥厂合成氨气化工段的气化炉后加置旋液分离器，改造气化炉结构，使灰渣不滞留于气化炉中，随激冷水流到旋液分离器中，将激冷水中全部能堵塞后序流程设备的灰渣沉淀，定期排放到屯渣槽中，干净的不含有堵塞设备的灰渣的碳黑水送往碳黑回收工段。

The assembly of journal and plain bearing liner space is too little, force of organic still oil pressure is small it is the crucial index that affects lubricant result, make lubricate because of lacking engine oil between crankshaft and plain bearing liner and bite dead invalidation, include to be pulled badly, lack lube, layer of alloy of dry attrition generation is fused, grind sliding surface to did not maintain the oily film of certain ply, and all sorts of local overload exhaustion are destroyed, cavitation erosion and V form are destroyed etc, through technology of him director diesel locomotive old experience reachs the analysis of pair of its breakdown reasons, put forward precautionary measures especially. As a result of,the burns caustic mechanism plain bearing liner to burn caustic mechanism of 1 plain bearing liner is the lube film burst between journal and plain bearing liner, cause plain bearing liner and crankshaft generation clash, below high temperature, high pressure and high rotate speed, the wear-resisting alloy layer of plain bearing liner wears away prematurely or fuse, cause plain bearing liner and crankshaft to stick thereby bite, can make the steel back of plain bearing liner and Kong Zhong produces whirligig, inlet port is jammed, carry on the back by steel again with the friction of aperture causes high temperature to make plain bearing liner burned-out further, can cause bolt to break off, happen swing a malign accident that pounds cylinder body of bad internal-combustion engine.

轴颈和轴瓦的装配间隙太小，还有机油压力低是影响润滑效果的关键指标，使得曲轴和轴瓦之间因缺少机油润滑而咬死失效，包括严重拉伤，缺少润滑油，干摩擦产生合金层熔化，磨滑面没有保持一定厚度的油膜，以及各种局部过载疲惫破坏，气蚀和V形破坏等，通过本人主管内燃机车技术多年经验及对其故障原因的分析，特提出预防办法。1轴瓦的烧损机理轴瓦烧损的机理是由于轴颈和轴瓦之间的润滑油膜破裂，导致轴瓦和曲轴产生摩擦，在高温、高压和高转速下，轴瓦的耐磨合金层过早地磨损或熔化，从而引起轴瓦和曲轴粘咬，会使轴瓦的钢背和座孔中产生旋转运动，进油孔被堵塞，再由钢背和座孔的磨擦进一步引起高温使轴瓦烧坏，并会造成螺栓折断，发生甩出捣坏内燃机缸体的恶性事故。

It is determined as a result of heating facilities, regular and high-temperature heating. It operated hot water pipes so that in the 15 ℃---- 90 ℃ from time to time between the operation, resulting in accelerated aging boiler and pipe rust and scale in the United States on heating and heating from time to time out after a period of time. The purpose is to accelerate the pipeline of the scale and rust solid precipitation knot a few years later so easy to plug.

由于供热设施所决定，定时和高温供热，使热水管在15℃----90℃之间不定时运行，产生热胀冷缩加速老化，锅炉和管道中的铁锈和水垢在美日定时供热和取暖期过后停用时间，加速管道的水垢与铁锈的沉淀结固，几年后，使管理易产生堵塞。

Blocked fallopian tubes in most women are infected as a result of chronic inflammation caused by chronic inflammation as a result of fallopian tube lumen so that congestion and edema with inflammatory cell infiltration, necrosis of the cells off will lead to tubal blockage; and bilateral fallopian tube through the continuation of the endometrium is associated So, do not rule out the endometrium is also a factor in chronic inflammation; General Hospital of conventional therapy: the use of repeated hydrotubation, laparoscopy, hysteroscopy-laparoscopy joint, such as wire and interventional treatment, some hospitals every day infusion, at the same time microwave, shortwave, physiotherapy, etc.

你好！输卵管堵塞多数女性是由于慢性炎症感染所致，由于输卵管长期慢性炎症使管腔内充血水肿炎细胞浸润，脱落坏死的细胞聚集才会导致输卵管堵塞；而双侧输卵管通过子宫内膜是延续相连的，所以，不排除子宫内膜也有慢性炎症的因素；一般医院常规治疗：多采用反复通液、腹腔镜、宫腹腔镜联合、导丝及介入等治疗，也有一些医院开展每天输液，同时用微波，短波，理疗等

Secondly, the results of heat pipe experiments show that when the experimental sets of LED illuminator of LED was used in horizontal angles, resulting in the heat pipe which fill 2.52g water volume have the best thermal properties than others.

第二个研究之 LED 散热模组的实验结果显示，在水平使用时以2.52g水量为最佳，以本实验 27W的 LED 热源功率为例，热源区可维持在50℃左右的平衡温度，而当管内水量高於2.52g时皆有蒸气堵塞现象使热源区温度上升。

If the well experiencing a blowout has significant openhole intervals, it is possible that the well will bridge over (or seal itself with rock fragments from collapsing formations) downhole and intervention efforts will be averted.

如果发生井喷时裸眼段很长，很可能会使井眼在井下堵塞（或由于坍塌的地层岩石碎块而使井眼自己被密封），这就需要采取干预措施。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。