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The magnetic merging line is constructed by minimum points of magnetic field strength along a large number of last closed magnetic field lines and several properly selected last closed field lines,whereas the radial ray integration of convectional electric field is used to calculate the electric potential on the merging line.

磁合并线由大量地磁场最外闭合力线的最小磁场点和若干合适选择的最外闭合力线连接而成,合并线上的电势分布通过沿径向射线积分对流电场获得。

Firstly, This paper processes geometry filtration based on character of orbit's apogee and perigee after orbit model is analyzed and based. Secondly Space Debris is separated into two kinds, coplanar and not coplanar according as location interrelation of target and debris. In Dynamic filtration's processing, considering prediction time limit and orbit perturbation, secular effects which have increaser effect is considered so that some need catching danger time point is appeased, some law about time when target and debris pass intersectant line each other is inferred, when debris and object are in different plane and some similar law also is inferred otherwise. The time list is arithmetical progression. These laws can improve calculation efficiency remarkably; Lastly orbit predict is a course approaching least distance. Danger time point in the last step become beginning time point from which debris and object's position and velocity are calculated by SXP4 Model which is an analytic model.By result, determine that relative movement trend is closer or apart, farther calculate the interval apart from time when predictive least relative distance occurs. Least relative distance and time when least distance occurs is calculated finally. It is a fast approach course adopting varied interval.

本文在分析、建立轨道摄动计算模型的基础上,首先采用基于轨道远、近地点特征对大量编目在册的空间碎片进行初步几何静态筛选,然后根据碎片与目标轨道面的相对位置特点把碎片分为异面与准共面两种情况以进行动态筛选,在筛选过程中考虑到预报时限长度和轨道摄动影响,引入了轨道摄动中具有积累效应的长期项以满足危险时间点的捕捉要求,利用了长期项摄动变化线性的特点导出了碎片与目标异面情况下各自过交线的时间序列成准等差数列的规律性和准共面情况下类似的规律性,从而显著地提高了前期轨道筛选的计算效率;最后对剩余危险碎片和目标飞行器利用SXP4轨道预报模型在前期轨道筛选的基础上以各个危险探测时间点为预报的时间起点,并根据预报计算结果,分析目标和碎片在该时间点的运动趋势是相互远离还是相互接近,推出预计最小相对距离发生时刻相对此刻的时间长度,得到其随时间变化的局部最小相对距离以及危险距离发生的时刻和相对速度,这是一个采用变时间步长、快速逼近最小相对距离的过程。

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折叠式铝合金展览架最大的优点是: 1、外观美观、细腻、本产品全部采用高强度铝合金材料,经过阳极处理; 2、承受力强、连接性强、安全系数高、不易变型; 3、运输携带方便、省运输费、搭建费及装潢费; 4、环保性强,不会产生大量的垃圾,一次性投资可重复使用,可自行维修、使用后可回收不会对自然产生污染,代替了世界上的木材资源; 5、多功能组合、组装简易、时间短、效率高、男女皆可、节省大量人工、费用; 6、造型多样化、可根据客户的需要定做S型、菱形、圆形、弧形等。

The formation of large amount of money the demolition of housing consumption demand, which focus on the formation of a large number of demolition by the concentration of the original purchase disrupt the normal requirements of real estate under the conditions of supply, so the volume in the demolition, land acquisition the most concentrated amount of provinces and cities, regions of the supply of housing production lack of hunger and real estate prices, high-speed upgrade and rapid growth in consumer demand.

形成大量的资金拆毁住房消费需求,重点是形成了大量的拆迁由浓度的原始购买扰乱正常的房地产需求的条件下,供应,使该卷中的拆迁,征用土地的数量最集中的省份和城市,地区的住房的供应生产缺乏饥饿和房地产价格的高速升级和快速增长的消费需求。

As the most important factor in the proposed calibration methods, vanishing point are addressed through the whole paper.

该方法既不需要将直线投影到球面坐标,也不需要对大量直线作统计特性分析,当存在大量多余直线观测时,这种平差方法可快速、准确地计算出灭点的最优位置。

The machine tool is that modern machinery manufacturing industry is hit by the most important treating equipment, in general engineering works, treating amount of work born by machine tool accounts for 40%~~ of general amount of work of machinofacture 60% about.

机床是现代机械制造业是受到了最重要的治疗设备,在一般的工程,处理大量的工作诞生的机床占到40 %一般的大量工作的机械制造60 %左右。

The designer originally opted for a big-volume statement, but then he decided to inject a little tension into the collection by torturing the volume into something else. He did this, for instance, with the elastic that tightened cuffs and gave a blazer a blouson waistband. Ossendrijver also used pintucking, pleats, or ruching on the sleeves of a safari jacket, or on a pair of pants so narrow they might have been leggings. It was a way of giving the sinuous fabrics he favors a new movement.

大量的女性阴柔特质注入男装是设计师的首要概念:柔软富弹性伸缩的上衫袖口束紧如灯笼袖、而收腰长袖上衣则在腰间系著细版腰封、打摺处理的狩猎夹克、极贴身如leggings的裤装、这些大量软质剪裁质料,就是Lucas Ossendrijver目前最偏爱的new styles。

These can be text files if they contain lots of spaces for indenting but line-art images that contain large white or black areas are far more suitable.

这些可以是文字文件,如果它们含有大量的空间行缩进,但最先进的图像含有大量白色或黑色的领域更为合适。

The most convenient and effective method among the three methods of isolatingUstilaginodea virens was the vibrating method. XBZ medium was the best method toget chlamydospores through screening for the six media. Based on chlamydosporesthrough vibrating cultured in PS liquid on shaking bed at 130r/min under 26℃darkconditions for 7 days, conidia were largely obtained. Occurrence information of rice false smut on paddy at Hengnan in 2006 wasinvestigated.

稻曲病病原菌用3种方法分离,结果比较得出振落法最方便有效;通过对6种培养基的比较筛选,结果表明胁本哲氏培养基能快速的产生大量的厚垣孢子;把厚垣孢子放在PS培养液于水平摇床上26℃黑暗条件下130r/min振荡培养,能在7d产生大量分生孢子。

Histologically, the seminiferous tubules contained numerous Sertoli cells and more Sertoli-spermatozoa complexes, accompanied by the depletion of Leydig cells with deeply stained nuclei. Mature spermatozoa were stored up in the epididymis, but only a few in the efferent ducts. In the second place was testicular atrophy(32/120; 26.7%). The seminiferous tubules showed moderate to severe inactivity of spermiogenesis with evidence of only spermatogonia, spermatocytes and Sertoli cells. The Leydig cells were obviously decreased in numbers associated with decrease of lipid droplets in their cytoplasms. Testicular hypoplasia was the third disorders(22/120; 18.3%). Only a few spermatogonia and Sertoli cells appeared without any spermiogenesis. The associated changes was decreased in Leydig cells and fibrous hyperplasia in the interstitium.Epididymal stones were sometimes found(12/120; 10%). Grossly, yellowish-white nodules with various sizes and firm in consistency were observed in the epididymis and the front efferent ducts. Microscopically, the epididymal ducts were dilated with voluminous spermatozoa storage, even showed calcification in severe cases. The deposited calcium salts were stained positively by Von Kossa and Alizarin red methods.Amyloidosis was also detected in 10 roosters(8.3%). Eosinophilic, homogeneous, amyloid-like substances were deposited mainly in the testicular interstitium and the periphery of blood vessels. These substances showed positive reaction by Congo red staining. Five roosters(4.2%)had Marek's lesions in the testis, epididymis and peripheral nerves with infiltration of pleomorphic lymphocytes. Only one case showed epithelial necrosis of seminiferous tubules accompanied by fibrous proliferation in the interstitium.

结果发现,在总共搜集的120个病例中,其中因年老所导致的产精力不佳为最多,占38例(31.7%),於镜下可见大量精虫黏附於Sertoli cell的表面,并可见Sertoli cell数量明显增多而Leydig cell明显减少,且其细胞核呈现浓染的现象,而在其副睪中仍可见到成熟精虫蓄留於管腔中,但在其输精管内却只有少量精虫存在;其次为睪丸萎缩,占32例(26.7%),镜下可见中度至重度无造精作用,其生精小管中只见到精母细胞、精原细胞及Sertoli cell存在,但Leydig cell数量明显减少且其细胞质内的脂质也明显减少;睪丸发育不全,占22例(18.3%),於生精小管内只见到精母细胞及少量Sertoli cell存在,不见造精细胞分化,於生精小管间质可见Leydig cell减少并伴随结缔组织增生;副睪结石,占12例(10%),肉眼下可在副睪及输精管前段见到黄白色大小不一的结节,触感坚硬,於镜下可见副睪管扩张并有大量成熟精虫蓄积,严重时可见钙化现象,以Von Kossa及茜素红染色均呈阳性反应;类淀粉沉著症,占10例(8.3%),镜下在睪丸间质及血管周围可见粉红均质样的物质沉积,以刚果红染色成阳性反应;马立克病,占5例(4.2%),镜下可在睪丸、副睪实质及周边神经内均可见到嗜碱性大小不一的淋巴样细胞浸润;睪丸坏死,占1例(0.8%),镜下可见生精小管上皮细胞坏死脱落及间质结缔组织增生。

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Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来,英国,在此地早期居住的是凯尔特人,已经被征服了三次。

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