周流的

Centrifugal energy saving analysis and measures: 1 improve the efficiency of centrifugal pumps a first step, in the selection of comparison, when many suppliers Selection program, in considering the cost-effective choice as far as possible under the premise of efficient programs; the second step , accredited professionals must Mill producers, affecting the pump efficiency of the key components such as impellers, pump body, pump cover, diversion devices, such as the manufacture of quality producers, especially for the airfoil impeller , outlet angle, leaves the sub-degrees, the shape of flow channel, to control the quality of finish, etc., so that products are delivered in the current production under the conditions of highly efficient products; the third step, the scene in the production of installation and debugging process, pump to ensure a solid foundation, with the driving machine for good, before and after valve flexible piping layout design is reasonable, on-site control is feasible and safe, the complete and accurate monitoring instrumentation to ensure that pump operation can carry out real-time monitoring; fourth step , are at long-term operation of water pumps necessary to pay attention to the equipment inspection and found anomalies reflect real-time reporting, in the normal minor repairs, overhaul cycle, to deal with the replacement of wearing parts inspection to ensure the pump's long-term safe and efficient operation.

第一步，在选型时多比较各供应商的选型方案，在考虑性价比的前提下尽量选用效率高的方案；第二步，派驻一定的专业人员驻厂监制，对影响水泵效率的关键零部件如叶轮、泵体、泵盖、导流器等的制造质量进行监制，尤其对叶轮的翼形、出水角、叶片的分度、流道的形状、光洁度等质量进行控制，使交付的产品是在当前的生产条件下的高效率的产品；第三步，在生产现场的安装调试过程中，要保证泵的基础牢靠，与驱动机对中良好，前后阀门开关灵活，管道布置设计合理，现场控制安全可行，各运行监控仪表齐全准确，保证泵的运行过程能够进行实时监控；第四步，是在水泵的长期运行中要注意对设备的点检，发现异常情况即时反映汇报，在正常的小修、大修周期中，应对各易损件进行检查更换，保证泵的长期高效安全的运行。

I've seen some good men get blown over G-packs In the Bronx where it's known to hear the heat clap And live niggaz get it on with the D-techs, SHIT, my life's legendary If I wrote down all in a book it would be very scary What you know 16 be missin' Benzes Rope chain down to my dick, the beef looks tremendous Me and my niggaz flip holes in bitches Back then, when I wouldn't even pose for bitches A-YO, you can ask dapadan who was the man Back in 88, every other week tricked 30 grand Even my bitches wore Gucci and Louie My peeps already in the crowd looking for groupies to screw me Exit the club, about to cruise up the block now with the taj, stay frontin' with top down See me in that new thing with my fiancee Ass so fat, making you say "Muchos GRANDE" Don't blame me, blame them, the white folk for giving me ten mil, for possessin' the tight flow WHOA [Chorus: repeat 2X] Ya'll wanna live my lifestyle Never seen a brick, never seen a crackhouse Wanna a war with the Don have your techs out Bring it on, and I'm show you gangsta [Verse 2] Yeah, yeah, uh, yo, blow half your head off, leave you with brain damage He got his shit rocked cause he didn't pay homage It's the Don of this rap shit, go on with that wack shit Heard you walked the dorm in a thong on your last bid Joey Crack is, the most official Toke the pistol for those who appose the issue I hope I convinced you to back up, really you acted up, believe me I could EASILY GET YOUR ASS TOUCHED And that sucks, ain't nobody could fuck with this Bullet shook could make you take a bucket of piss For runnin' your lips Got the fifth stuck in your ribs, don't make me...

我见过一些好的男人得到吹超过国包在布朗士区，它在已知听到热拍住niggaz得到它同为d -科技股， shit的，我的一生的传奇如果我写下来的一本书，这将是非常可怕的你知道16 missin ' benzes 绳链，以我的迪克，牛肉看起来巨大我和我的niggaz倒装孔犬当年，当我甚至不构成对犬-顿，你可以要求dapadan谁是男子早在88 ，每隔一周骗30大甚至我的犬穿着诺特美联社11 我的peeps已经在人群中寻找groupies以螺丝我退出俱乐部，即将邮轮了，现在座与泰姬陵，逗留frontin '由上而下见我在这件新鲜事，我的未婚妻群丛，使脂肪，使你说& muchos重创&不要怪我，责怪他们，白民歌给我10 mil ， possessin '紧迫流 whoa [合唱：重复2倍速] ya'll想住我的生活方式从未见过砖，从未见过crackhouse 想要战争与顿河有你的科技股列使之对，我敢表明您gangsta [韵文2 ] 嗯，嗯，嗯，协青社，打击了一半，你的脑袋过，留给你的脑损伤他得到了shit的轰动的原因，他不来顶礼膜拜它的顿河的此次rap shit的，继续与wack shit的听到你走到公寓在一个通对你的最后一个申办乔伊裂纹，最正式 toke手枪对于那些appose问题我希望我确信你回来了，真是你们的行动了，请相信我我可以轻易获得您的依次为感动并且吸收，是不是任何人都无法他妈的这子弹震撼了，可以使你的一桶独立私校为runnin '你的嘴唇获得第五停留在你的肋骨，不要让我。。。

The project change in the Hongkong film industry can be summed up as follows. It is Chuang-tzu's Test in His Wife that makes a beginning of the Hongkong film industry. While Husband's Coming in Late, reviving traditional Cantonese films, unseals the markets of Singapore and Malaysia, Liang Shanbo and Zhu Yingtai completely occupies the market of Taiwan, the largest oversea market except for the mainland. And after Seventy-Two Tenants, as a sign of new industry, combines the Mandarin film with the Cantonese film, New Dragon Tavern goes further to find a new way to the market of the mainland. Not only do Stephen Chow's films become repeatedly a solace in downturn but also the blockbusters in the Chinese language film have a global integration, thus starting the second upsurge of the Eastern knight-errant film.

总括香港电影产业发展中的项目流变，《庄子试妻》项目开启了香港电影制片业；《郎归晚》项目使香港电影在失去内地市场后重新开启了新、马地区的市场，并引导了传统粤语片的再度复兴；《梁山伯与祝英台》项目使香港电影彻底占领了台湾市场，促使这一除内地外最大的国语片市场成为香港电影的主要市场之一；《七十二家房客》项目使香港电影的国、粤语片产业走向合流，形成了新的香港电影产业；《新龙门客栈》项目则又在香港电影的全胜时期再次叩开了内地市场的大门，为香港电影找到了新出路；&周星驰电影&项目不但屡屡成为低迷时期的救市之作，还将香港电影经济提升到了新的档次；新世纪之后的华语大片项目更是整合了全球华语电影力量，继李小龙电影后第二次掀起东方武侠电影的热潮，创立了华语动作片品牌，并从产业、技术和美学层面将华语电影和新全球电影成功对接。

In addition, the leakage coefficient decreases with the decrease of gap width at the same rotational speed.

研究结果表明：用相对流量系数（转动时的流量系数与静止时的流量系数的比值）与速比（周向速度与轴向通流速度的比值）的函数关系表征泄漏量随转速变化的规律时，存在一个临界速比约等于1.0；低于这个临界速比时，转速对泄漏量的影响不明显；高于这个临界速比时，泄漏量随转速的增大而减小，在很高的转速下（6000r/min以上），泄漏量至少减小了5.1%；相同间隙下，泄漏系数随着压比的提高而近似线性增加；相同转速下，随着密封间隙的减小，相对泄漏量逐渐降低。

It is available to carry out numerical simulation and fluid dynamic analysis further. Based on Frozen-Rotor Approach and Rotor-Stator Approach, the numerical simulation was carried out in the centrifugal pump and the numerical results showed that the flow in the impeller and volute of centrifugal pump is periodically unsteady. Due to the interaction between impeller and volute the flow is characterized by pressure fluctuations and it is the strongest at impeller outlet and at the vicinity of the tongue. The unsteady pressure fluctuations are also one of the most important reasons to induce vibration and noise. Secondly, the flow field of the volute is characteristic of the vortex flow, and the vortex flow presents very complicated developing process which is creating, increasing and dissipating every now and then. All these lead to very large flow loss in the volute.

采用Frozen-Rotor冻结转子模式和Rotor-Stator滑移界面模式系统开展了不同工况下离心泵内叶轮与蜗壳耦合的定常和非定常流动研究，结果表明由于叶轮与蜗壳的干扰蜗壳进口周向流动的不均匀性是非常强烈的，特别是叶轮与蜗舌间的相互干扰最为强烈，一直影响到叶轮进口和蜗壳扩散管出口的流场；在蜗壳内整个流动是以旋涡形式向出口推进的，并随着包角的变化旋涡表现出十分复杂的产生、发展和耗散的演化过程，导致蜗壳内较大的流动损失。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。