向后

In addition, spermiogenesis includes chromatin condensation, migration of the cytoplasm and mitochondria to the caudal pole of the nucleus, formation of a moderate axial nuclear fossa containing the proximal centriole and part of the distal centriole and presence of a short cytoplasmic canal separating mitochondria from the flagellum.

另外，精子发生过程中还包括染色质浓缩，细胞质和线粒体向细胞核的尾端迁移，在核的后端中轴位置上形成中等大小的核后凹，近端中心粒和远端中心粒的一部分嵌在核后凹之内，短的胞质内陷管将线粒体与鞭毛分隔开。

Operation operation undertakes by convention, neck of the palace in art injects fragrance too the Buddhist nun 0.5~1mg. 2 results are used fragrance too after the Buddhist nun, 30 take out IUD smoothly: The muscularity that lug block is pulled outwards when?0 exemple ticks off annulus, the consideration has a part to embed, pull IUD lower edge forcibly appropriately to the mouth outside palace neck, two hemostatic clamp are fixed, the clipping between two clamp, pull straight hind take out; to 3 are probed feel without apparent metal, pull via after small curette blows the film inside the uterus gently, be being pulled take out; to because menopause time is too long,have 2, palace neck is beyond the mark atrophic, bougie not...

手术操作按常规进行，术中宫颈注射芬太尼0.5~1mg.2结果使用芬太尼后，有30例顺利取出IUD：有10例勾环时向外牵拉阻力大，考虑有部分嵌顿，适当用力将IUD下缘拉至宫颈外口，两把止血钳固定，两钳间剪断，拉直后取出；有3例探查无明显金属感，经小刮匙轻刮子宫内膜后牵拉取出；有2例因绝经时间太长、宫颈过分萎缩、探针不。。。

The changes in phase structure and Curie temperature of the Sm2Fe17 compound after nitrogen absorption were studied by using X-ray diffraction, differential thermal/thermo-gravimetric analyzer and magnetic measurement. The results of X-ray diffraction showed that the diffraction peaks of the Sm2Fe17 compound shifted toward lower angle after nitrogen absorption, and the characteristic peaks of α-Fe were observed. This showed that the unit cell of Sm2Fe17 expanded, the compound was decomposed to a certain extent and the characteristic peaks of α-Fe appeared.

通过X-射线衍射、差热－热重联用仪以及磁测量等手段，研究了Sm2Fe17化合物吸氮后的相结构及居里温度的变化行为。X-射线衍射表明，吸氮后Sm2Fe17化合物的衍射峰向小角度方向偏移，并且出现了α-Fe的衍射峰，这说明吸氮后化合物的晶胞有所膨胀，并且化合物有一定的分解，产生了α-Fe。

Its universality: its democratic equality and constancy to its nature in seeking its own level: its vastness in the ocean of Mercator's projection: its unplumbed profundity in the Sundam trench of the Pacific exceeding 8000 fathoms: the restlessness of its waves and surface particles visiting in turn all points of its seaboard: the independence of its units: the variability of states of sea: its hydrostatic quiescence in calm: its hydrokinetic turgidity in neap and spring tides: its subsidence after devastation: its sterility in the circumpolar icecaps, arctic and antarctic: its climatic and commercial significance: its preponderance of 3 to 1 over the dry land of the globe: its indisputable hegemony extending in square leagues over all the region below the subequatorial tropic of Capricorn: the multisecular stability of its primeval basin: its luteofulvous bed: its capacity to dissolve and hold in solution all soluble substances including millions of tons of the most precious metals: its slow erosions of peninsulas and islands, its persistent formation of homothetic islands, peninsulas and downwardtending promontories: its alluvial deposits: its weight and volume and density: its imperturbability in lagoons and highland tarns: its gradation of colours in the torrid and temperate and frigid zones: its vehicular ramifications in continental lakecontained streams and confluent oceanflowing rivers with their tributaries and transoceanic currents, gulfstream, north and south equatorial courses: its violence in seaquakes, waterspouts, Artesian wells, eruptions, torrents, eddies, freshets, spates, groundswells, watersheds, waterpartings, geysers, cataracts, whirlpools, maelstroms, inundations, deluges, cloudbursts: its vast circumterrestrial ahorizontal curve: its secrecy in springs and latent humidity, revealed by rhabdomantic or hygrometric instruments and exemplified by the well by the hole in the wall at Ashtown gate, saturation of air, distillation of dew: the simplicity of its composition, two constituent parts of hydrogen with one constituent part of oxygen: its healing virtues: its buoyancy in the waters of the Dead Sea: its persevering penetrativeness in runnels, gullies, inadequate dams, leaks on shipboard: its properties for cleansing, quenching thirst and fire, nourishing vegetation: its infallibility as paradigm and paragon: its metamorphoses as vapour, mist, cloud, rain, sleet, snow, hail: its strength in rigid hydrants: its variety of forms in loughs and bays and gulfs and bights and guts and lagoons and atolls and archipelagos and sounds and fjords and minches and tidal estuaries and arms of sea: its solidity in glaciers, icebergs, icefloes: its docility in working hydraulic millwheels, turbines, dynamos, electric power stations, bleachworks, tanneries, scutchmills: its utility in canals, rivers, if navigable, floating and graving docks: its potentiality derivable from harnessed tides or watercourses falling from level to level: its submarine fauna and flora, numerically, if not literally, the inhabitants of the globe: its ubiquity as constituting 90 percent of the human body: the noxiousness of its effluvia in lacustrine marshes, pestilential fens, faded flowerwater, stagnant pools in the waning moon.

50它的普遍性，它的民主的平等性，以及保持着它自身求平的本质。用墨卡托投影法在地图上所标示出的浩淼的海洋；太平洋中巽他海沟那超过八千噚的不可测的深度；永不消停、后浪推前浪地冲刷着海岸线每一部位的波涛以及水面上的微粒子；水的单位粒子的独立性；海洋变幻莫测；根据液体静力学，风平浪静时它纹丝不动；根据液体动力学，小潮大潮时它便涨了起来。暴风雨后一片沉寂；北极圈与南极圈冰冠地带的不毛性以及对气候及贸易的影响；跟地球上的陆地相比占三对一优势；它在亚赤道带南回归线以南的整个区域延伸无数平方海里的绝对权威；其在原始海盆里数千万年以来所保持的稳定性；它那橙红色海床；它那把包括数百万吨贵金属在内的可溶解物质加以溶解，并使之保持在溶解状态的性能；它对半岛和有下陷趋势的岬角所产生的缓慢的浸蚀作用；其冲积层；其重量、容积与浓度；它在咸水湖、高山湖里的静谧；其色调因热带、温带和寒带而变为或浓或淡；与陆上的湖泊、溪流及支流汇合后注入海洋的河川，还有横跨大洋的潮流所构成的运输网。沿着赤道下面的水路自北向南的湾流；海震、水龙卷、自流井、喷泉、湍流、漩涡、河水暴涨、倾盆大雨、海啸、流域、分水岭、间歇泉、大瀑布、漩流、海漩、洪水、泛滥、暴雨等滥施淫威；环绕陆地的上层土壤那漫长的曲线；源泉的奥秘可用探矿杖来占卜或用湿度测定器来揭示；阿什汤大门的墙壁上的洞、空气的饱和与露水的蒸发能够证明那潜在的湿度；水的成分单纯，是氢二、氧一的化合物；水的疗效；水的死海里的浮力；它在小溪、涧谷、水坝的缝隙、船舷的裂口所显示的顽强的浸透性；它那清除污垢、解渴、灭火、滋养植物的性能；作为模范和典型，它的可靠性；它变化多端：雾、霭、云、雨、麦、雪、雹；并在坚固的消防龙头上发挥出压力；而且千姿百态：湖泊、湖岔、内海、海湾、海岬、环礁湖、环状珊瑚岛、多岛海、海峡、峡江、明奇、潮汐港湾、港湾；冰河、冰山、浮动冰原显示出它是何等坚硬；在运转水车、水轮机、发电机、发电厂、漂白作坊、鞣皮厂、打麻厂时，它又是那样驯顺；它在运河、可航行的河川、浮船坞和干船坞所起的作用；潮汐的动力化或利用水路的落差使它得以发挥潜力；海底那些成群的动物和植物虽然并非名副其实地栖息在地球上，论数目却占地球上生物的一大半；水无所不在，占人体的百分之九十；在沼泽地、闹瘟疫的湿地、馊了的花露水以及月亏期那淤积污浊的水塘子，水所散发的恶臭充满了毒气。

A device and method for preparing compound nano fiber endless tow, which contains feeding material liquid to pair of electric spinning nozzle on frame, each nozzle respectively applied with high dc voltage with opposite polarity, each pair of nozzle jetting out nano fiber with opposite electric charge, said nano fiber attracting and colliding each other to form compound nano fiber, then forming nano fiber endless tow after drawing and stretching, the first opposite set pair of electric spinning nozzle jetted compound nano fiber endless tow is stretched down and used as acceptor which covered by the nano fiber jetted by second pair of nozzle an d forming two layers of compound nano fiber endless tow after drawing and stretching, in turn to get multilayer compound nano fiber endless tow after drawing and stretching by godet roller.

复合纳米纤维长丝束制备装置及其制备方法是一种简单、高效电纺制备纳米纤维长丝束的方法，其步骤为将料液输送给支架(3)上的电纺喷头对(1)；喷口相向的电纺喷头对(1)的每个喷头分别施加相反极性的直流高电压；每对相向喷口喷出分别带相反电荷的纳米纤维，并在空中相互吸引、碰撞形成复合纳米纤维，经牵引、拉伸后形成复合纳米纤维长丝束；第一对相向放置的电纺喷头纺丝形成的复合纳米纤维长丝束向下拉伸，并作为接受体与第二对电纺喷头喷出的分别带相反电荷并相互吸引的纳米纤维在空中相遇，被第二对电纺喷头喷出的纳米纤维包裹，经牵引、拉伸后形成两层复合纳米纤维长丝束；依次类推，最后经导丝辊对(2)牵引、拉伸后得到多层复合纳米纤维长丝束。

During the beginning （about 3-5 seconds） of operating "Compress" key for oil cylinder handspike to move downwards, push the trash feeding door or pull the main door, hydraulic oil cylinder handspike stops immediately,"Compress" light goes out, discontinuous ringing arises, and the screen shows "Breakdown"; reset the door, the ringing stops, and the screen shows "Compress"; after hydraulic oil cylinder handspike automatically returns to the original place, indicator light "Compress" goes out.

在操作"压缩"键使油缸推杆向下运动后的最初时间内（约3-5秒），推动垃圾投入门或拉开大门，液压油缸推杆立即停止运动，"压缩"显示灯灭，产生缓慢间歇讯响，显示"故障"；门恢复后，停止讯响，显示"压缩"，液压油缸的推杆自动回到原始位置后，指示灯"压缩"灭。

According to the relationship of Yanshan epoch granites and NE ductile shear zones of main structure of this region, and regional isotope chronology data, the granitoids of this region are divided:(1) pretectonic, qnartze monzonite -granites assemblage, representative plutons: Shigujian, Erwan, Egongbao, and Yunfengding;(2) syntectonic granite assemblage, representative plutons: Tiantangzhai, and Jiuzihe;(3) posttectonic granite assemblage, representative plutons: Daguping and Bijiashan. These assemblages differ from precollision , syncollision and postcollision intrusive assemblages.

根据燕山期花岗岩与区内主体构造NE向韧性剪切带的关系，并结合区域同位素年代学资料，将区内花岗岩分为：(1)构造前石英二长岩—花岗岩组合，代表性岩体有石鼓尖、二湾、鹅公包、云峰顶；(2)同构造花岗岩组合，代表性岩体有天堂寨、九资河；(3)构造后花岗岩组合，代表性岩体有大孤坪、笔架山，这里的构造前、同构造和构造后侵入岩组合不同于碰撞前、同碰撞和碰撞后侵入岩组合。

When 21 minutes of 58 seconds, after a worker discovery that ride a bicycle is peculiar call a person actively to examine, call the police to the police box around.

社区警务室的监控记录了全过程：早上7时18分19秒，身形单薄的周荣穿着校服、双手插在裤袋，由东往西行走，行走过程中突然前倾，摔倒在地后翻了个身，双腿弯曲挣扎，30秒后，挣扎的双腿慢慢伸直。7时21分58秒，一名骑自行车的工人发现异样后主动叫人查看，并向附近的岗亭报警。

ResultsFour cases are huge mass of solid oval with integrity of coat and smooth, clear edge; they grow at the right middle or right posterior inferior mediastinum, along the spine, no expansion of intervertebral foramen and down to enter into crura of diaphragm; their density are less uniform, in two masses with a sand calcification image. In plain scanning, the CT values is 23~33Hu; in dynamic state enhancement scanning of 4 cases the mass are not enhanced or not obviously strengthened at arterial phase, and have a linear strengthen at venous phase.

结果4例均为巨大实性椭圆形肿块，肿块包膜均完整，边缘光滑清晰；4例肿块分别位于右后中下和右后下纵隔，均沿脊柱生长，无椎间孔扩大，向下伸入膈脚后；4例肿块密度均欠均匀，2例肿块伴有一砂粒状钙化影，平扫时CT值为23～33 Hu；动态增强扫描时动脉期4例肿块均呈无强化或强化不明显，静脉期4例肿块内均见有一条线形强化。

With the raw material and the particle size of reducing agent narrowed, the percent reduction of strontia increases.(6) With the barbecuing pressure increasing, the percent reduction of strontia increases, after the certain value, the percent reduction of strontia decreases instead.(7) With reduction temperature increasing, the percent reduction of strontia increases.(8) The percent reduction of strontia is increasing with prolonging reduction time. In this experimental condition, it will become steady after 2.5h.

通过实验研究确定以SrCl_2-SrF_2-SrCO_3的纯锶盐体系作为电解质，实验中还采用了我们最新研制的熔盐电解监控仪对电解过程进行测量和系统的研究，得出以下结论：(1)增加电流强度，反电动势亦随之增加，而升高温度反电动势则有所降低；(2)随着电流密度的升高和电解时间的延长，电流效率逐渐增加，达到峰值后稳步下降；(3)延长电解时间，合金中锶的含量逐渐增加，最高可达18.1％；(4)开始电解后，反电动势逐渐增加，但向熔体中加入SrCO_3后，反电动势明显降低，因此认为在正常电解时是SrCO_3在分解。

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。