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

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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.

研究結(jié)果表明，Pd-Co/活性炭催化劑是目標(biāo)轉(zhuǎn)移加氫反應(yīng)的最適宜催化劑印度高清AV，Pd-Co/γ-Al203效果也較好欧美性爱日，而硅膠和硅藻土由于表面酸性較強(qiáng)，容易造成生成聚合物而堵塞催化劑微孔自拍视频网、使催化劑迅速失活色哟哟最新网站入口；此外，添加Biwww.9999高清黄色、Ce猛男好爽好爽男人天堂、Cu等助劑時(shí)對(duì)活性并無改善作用，而添加La和Ba助劑時(shí)可使Pd的催化活性有所提高国产性爱一级视频，效果最好的是Co助劑久久不用播放器的一级片，尤其是先浸漬Co的Pd-Co/C催化劑国产白领诱惑在线观看视频，原因是Co占據(jù)了活性炭的微孔、覆蓋了某些對(duì)目標(biāo)反應(yīng)不利的官能團(tuán)十八岁以下禁看黄，使其活性和選擇性都有較大幅度的提高又黄又高潮水又多的视频。

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.

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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.

這些污垢與鈣鎂皂形成的黏性物質(zhì)堵塞在皮膚腺的開口處，不僅堵塞了皮膚的排泄通道亚洲激情图库专区，形成栓塞在线观看的av网站，刺激皮膚，還會(huì)影響皮膚的正常代謝欧美日韩一区二区三区在线观看，使皮膚過早地萎縮淫淫综合网、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.

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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.

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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.

由于供熱設(shè)施所決定，定時(shí)和高溫供熱日本三级网站网址大全:，使熱水管在15℃----90℃之間不定時(shí)運(yùn)行永久毛片在线看，產(chǎn)生熱脹冷縮加速老化，鍋爐和管道中的鐵銹和水垢在美日定時(shí)供熱和取暖期過后停用時(shí)間国产主播在线播放，加速管道的水垢與鐵銹的沉淀結(jié)固午夜日韩福在线播放，幾年后，使管理易產(chǎn)生堵塞玖玖玖在线资源。

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.

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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.

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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.

如果發(fā)生井噴時(shí)裸眼段很長(zhǎng)，很可能會(huì)使井眼在井下堵塞（或由于坍塌的地層巖石碎塊而使井眼自己被密封）日日夜夜国产一区，這就需要采取干預(yù)措施欧美性爱一级免费看。

aggravate the traffic jams and worsen the crowdedness：使交通堵塞和擁擠更為惡化

38be easily taken in by 容易被欺... | 39aggravate the traffic jams and worsen the crowdedness 使交通堵塞和擁擠更為惡化 | 40will pay a high price for this negative development of 為. . 的負(fù)面發(fā)展付出高昂...

cry down：貶低、大聲叫喊(使發(fā)音著)講不下去

be croded with...:擠滿亚洲A级片中文字幕在线观看、擁擠草草操视频、堵塞 | cry down:貶低、大聲叫喊(使發(fā)音著)講不下去 | cry out:大聲叫喊

DR：壓力調(diào)節(jié)器

同時(shí)藉一通過一具有壓力調(diào)節(jié)器(DR)的第三調(diào)節(jié)回路來調(diào)節(jié)的堵塞空氣流(S)而形成柱塞. 壓力測(cè)量裝置(3)測(cè)量輸送通道(10)內(nèi)的堵塞壓力并把相應(yīng)的信號(hào)輸給比較器(V),它采取安全措施使信號(hào)燈(4)或剪刀(8)產(chǎn)生動(dòng)作. 本所示的實(shí)施例中,

encumber: v.1：妨礙,阻礙,堵塞 2.使...負(fù)擔(dān)沉重,拖累

superfluous: a.過多的,過剩的,多余的,不必要的 | encumber: v.1.妨礙,阻礙,堵塞 2.使...負(fù)擔(dān)沉重,拖累 | ascendancy: n.優(yōu)勢(shì),統(tǒng)治或支配地位

jamming：堵塞

其設(shè)計(jì)過程中利用了"堵塞(Jamming)"原理. 堵塞(Jamming)是通過增加液體密度使液體變?yōu)楣腆w狀態(tài)的物理過程.

throw light on：提供知識(shí),使人們了解

traffic jam交通堵塞 | throw light on提供知識(shí),使人們了解 | too good to be true好的令人難以置信

Traffic jams drive me nuts：交通堵塞使我發(fā)狂

61.I agree in principle but I've some other opinions.原則上我,同意,但是有些其他的看法. | 62.Traffic jams drive me nuts.交通堵塞使我發(fā)狂. | 63.How stirring!太令人激動(dòng)了.

Traffic jams drive me nuts：交通堵塞使我難受

I'm worried about your mother's health. 我牽掛著你母親的健康狀況. | Traffic jams drive me nuts.交通堵塞使我難受. | How do you feel about your girlfriend?你覺得你的女友如何?

Leaves skin smooth and invigorated：使肌膚光滑和搞活

Helps prevent clogged pores有利于防止堵塞毛孔 | Leaves skin smooth and invigorated使肌膚光滑和搞活 | Specially formulated for a man's skin專為一名男子的皮膚

jam n. 1：果醬 2擁擠,堵塞,卡住v. 堵塞(使)卡住,擠滿

isolate vt. 使隔離,使孤立 | jam n. 1 果醬 2擁擠,堵塞,卡住v. 堵塞(使)卡住,擠滿 | jealous a. 1 妒忌的,羨慕的2猜忌的,唯恐失去的