切下

The calculation results shows that ,(1) when the rotor rotates at the working speed, a local regurgitant whirlpool that is rightabout to the rotor"s rotating direction appears in the classifying region, which makes the separated granules come back to the outside of the classification district and influences the classification efficiency of the turbine classifier;(2) in the condition of a low rotating speed of turbo rotor, ultrafine particles can follow the gas phase by and large, but when the rotating speed increases, a phenomenon of velocity slippage between two phases appears evidently;(3) A operating parameter, air flow rate is so important that can directly influence the stability of flow field in classifying chamber, the bigger the air flowrate is , the steadier the flow field is;(4) Compared with straight blades, the new shape of blades with backward crooked elbow are helpful to improve the stability of flow field and form whole stream easily, also beneficial to advance the classification accuracy and classification efficiency;(5) The motion trace of particles are very complicated when the turbo rotor rotates at a high speed, the constant bounce of the particles appear between the blades and the coarse particles are even bounce back from the inlet, only the finer can pass through the classification area from the oulet;(6) Along with the increase of the rotor"s rotating speed, radiah axial and tangential velocity all begain to fluctuate repetitively like sine-wave, the smaller the particles are, the more violently they fluctuates.

数值模拟结果表明，(1)在涡轮达到工作转速时，在分级区域形成了一个与涡轮旋转方向相反的局部回流涡，它使得分离出来的细粒重又被带回分级轮外边缘，从而严重影响分级机的分级效率；(2)粉尘粒子在涡轮低速运动情况下，基本上能跟随气体运动，但随着转速加大，两相之间出现了明显的速度滑移现象；(3)分级机工作时的风量也是一个比较重要的操作参数，它可以直接影响到分级机内腔流场的稳定性，风量越大，流场越稳定；(4)同直叶片形状相比较，带后弯导板的叶片，有利于改善流场的稳定性，流场容易形成整体流，对提高分级效率和分级精度都非常有利；(5)粒子轨迹线在涡轮转速较高时十分复杂，有的出现了反复的弹跳现象，大颗粒不能通过分级区域而从进口返流了，只有细小的颗粒才从出口处流出；(6)涡轮转速加大时，粒子的径向、轴向和切向速率出现了明显的类似于正弦波的脉动现象，颗粒越小，脉动程度越为剧烈。

The DNA of Yak PrP expressed plasmid extracted from the recombinant expressed bacterium was identified by PCR amplification and two-ezyme digestion. The expressed product was obtained from the recombinant bacterium inducted under the optimized expressed condition (37℃, 1 mmol/L IPTG, 6 h), and it was determined by SDS-PAGE and Western blotting. The GST-BoPrP(23—242) fusion proteins were collected by two ways: the first is to purify and renature from the inclusion bodies; the second is to separate by SDS-PAGE.

将保存的含有牦牛PrP基因重组表达菌提取质粒DNA，进行PCR扩增和双酶切鉴定，并在优化诱导表达条件(37℃，1mmol/L IPTG，6h)下，获得的表达产物进行SDS-PAGE和Western blotting检测；将鉴定之后的重组表达菌诱导表达后，通过两种方法回收GST-BoPrP(23～242)融合蛋白：其一，是从包涵体中提取和复性GST-BoPrP(23～242)融合蛋白；其二，是通过SDS-PAGE直接分离并纯化GST-BoPrP(23～242)融合蛋白。

To banish the itch, take off the plaster for a while and cover the spot with a hot towel; when the itch is over, do no replaster until the surface of the skin is confirmed to be intact.

贴后若皮肤发痒乃系药力渗入病灶刺激皮肤所致，遇到此种情况可将膏药暂时揭下，用热毛巾轻敷，切勿抓破，待不痒后再贴之。

Methods Twenty-five cases of giant PLCs, with a mean diameter of 14.78cm, were evaluated. All of the tumors involved the main hepatic veins and /or retrohepatic vena cava. Before resection the tumor was fully exposed and an occluding tape, when neccessary, was placed around the vena cava.

25例累及第二第三肝门的肝癌，平均肿瘤直径14.78cm，分别压迫主要肝静脉根部或/和肝后腔静脉；进腹充分暴露肿瘤后在间歇性第一肝门阻断下切除肿瘤，切肝前根据需要预置腔静脉阻断带备用。

Methods Twenty-five cases of giant PLCs, with a mean diameter of 14.78cm, were evaluated. All of the tumors involved the main hepatic veins and /or retrohepatic vena cava. Before resection the tumor was fully exposed and an occluding tape, when neccessary, was placed around the vena cava. The hepatectomies were performed under intermittent portal triad clamping.

25例累及第二第三肝门的肝癌，平均肿瘤直径14.78cm，分别压迫主要肝静脉根部或/和肝后腔静脉；进腹充分暴露肿瘤后在间歇性第一肝门阻断下切除肿瘤，切肝前根据需要预置腔静脉阻断带备用。

The main changes were the downward and backward rotation of the mandible, the retrusion of the lower incisors, the protrusion of the upper incisors.FR-Ⅲ also promotes the growth of maxilla and reaches the normal relationship of the anterior overjet and overbite.

结果：FR-Ⅲ能矫正上下颌基骨异常的矢状关系，主要变化是下颌骨向下、向后旋转，改变下颌骨生长的方向，同时使下颌切牙舌倾、上前牙唇倾，上颌骨向前生长。

The new Pluto ll slitter rewinder is also aimed at greater efficiency and clever design features are claimed to reduce waste and down times.

新冥王星当地雇员纵切复卷机也是为了提高效率和聪明的设计特点是声称要减少废物和向下的时代。

Pushkin writes down (1821),"prisoner"(1822)"cause ocean ""dirk "(1824th) rank of sheet, long poet having written a group of "south poem ", including "Caucasian to capture "(1822),"robber brother "(1822),"tear spring that Bach Qiesala leans on"(1824),"puncture vine ridge "(1824) four sheets romantism narrating.

他追求自由的思想更明确，更强烈了。普希金写下《短剑》（1821）、《囚徒》（1822）《致大海》（1824）等名篇，还写了一组&南方诗篇&，包括《高加索的俘虏》（1822）、《强盗兄弟》（1822）、《巴赫切萨拉依的泪泉》（1824）、《茨冈》（1824）四篇浪漫主义叙事长诗。

Pushkin writes down (1821),"prisoner"(1822)"cause ocean ""dirk "(1824th) rank of sheet, long poet having written a group of "south poem ", including "Caucasian to capture "(1822),"robber brother "(1822),"tear spring that Bach Qiesala leans on"(1824),"puncture vine ridge "(1824) four sheets romantism narrating.

普希金写下《短剑》（1821）、《囚徒》（1822）《致大海》（1824）等名篇，还写了一组&南方诗篇&，包括《高加索的俘虏》（1822）、《强盗兄弟》（1822）、《巴赫切萨拉依的泪泉》（1824）、《茨冈》（1824）四篇浪漫主义叙事长诗。

The evening of January 27 priests at the Salesian monastery in L'Aquila, Italy were startled by a loud crash.

胡安娜·桑切斯是西班牙南部阿尔梅里亚市一名70岁的老太太，她在家附近的一条街上走路时，被一个从空中落下的大冰块砸中了肩膀，昏了过去。1月12号那天，就在离塞维里亚市约200英里处，一个9磅重的大冰球砸到了一辆汽车上，车里的男人险些被砸成重伤。l月27号晚，意大利拉魁拉市慈幼会修道院里传出了一声巨响，惊动了院里的牧师们。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。