节下的

4DRG was co-culture with sciatic nerve segment in 10鸖 DMEM;the axons were longer and surround the sciatic nerve segment which was regard as anew evidence for chemotropism.

结果：(1)在无血清条件下单独培养的DRG，背根神经节的轴突数目众多，外形纤细弯曲，不成束，并且施万细胞和成纤维细胞稀少，所以可以排除两者对轴突生长的影响，为观察来源于变性坐骨神经段的可溶性因子对轴突生长的作用提供了有利条件；(2)在无血清条件下DRG和变性坐骨神经段联合培养，①先单独培养DRG，4天后待神经元轴突长出，再与坐骨神经段联合培养，观察到神经元的轴突数目减少，外形挺直，部分轴突之间相互粘附成束；②变性坐骨神经段和DRG同时联合培养，神经元的轴突数目明显减少，外形粗壮，轴突之间相互粘附成束；(3)有血清条件下单独培养DRG，轴突数目较多，外形挺直，长短不一，部分神经元的轴突之间相互粘附，施万细胞和成纤维细胞数目众多，观察到的轴突生长情况受到施万细胞和成纤维细胞的直接或者间接的影响。

Through the treatments of defoliate, darken ear and darken peduncle, we studied the effects of wheat photosynthesis organs on five items, such as 1000-grain weight, grain weight/ear, grain number/ear, contribution to 1000-grain weight and contribution to grain weight/ear in different fertilizations.

为了解小麦光合器官对产量的作用以及施肥的调节效应，通过剪叶、包穗、包穗下节等处理，研究了不同施肥条件下小麦光合器官对千粒重、穗粒重、穗粒数的影响以及对千粒重贡和穗粒重的贡献率。

You will come in May between June, between choice section shorter give birth to half lignification branch in those days, from base the ministry cuts dirty to insert spic, topmost reservation comes 3 pieces 5 flocculus, if branch is too long, yi Ke bite off carries a tip on the head, cuttage medium can use humus soil of orchid mud, high mountain, vermiculite, pearlite or Huang Xin earth to wait, thick about 15 centimeters reach 20 centimeters, the catchment layer that lower berth reachs 8 centimeters 7 centimeters; medium after in season is wet, in will inserting spic to insert matrix, deepness of the be buried that insert spic makes an appointment with the 1/2 that grows for spic, a few cuttage also can choose the family full-dress medium generation makes big flowerpot cuttage seedbed.

你可于5月至6月间，选择节间较短的当年生半木质化枝条，自基部切下作插穗，顶端保留3片至5片小叶，若枝条过长，亦可截去顶梢，扦插介质可用兰花泥。高山腐殖土。蛭石。珍珠岩或黄心土等，厚约15厘米至20厘米，下铺7厘米至8厘米的排水层；把介质喷湿后，将插穗插入基质中，插穗入土深度约为穗长的1/2，家庭少量扦插也可选用大花盆盛装介质代作扦插苗床。插后加盖塑料薄膜保湿，温度控制在25℃至30℃之间，加设荫棚遮挡阳光，或挪放于树荫下，始终保持扦插基质湿润，东鹃约过1个月即可生根，而西鹃则要60天至70天才能生根。9月后可减少遮荫时间，并追施稀薄尿素液一次，浓度约为0.2%，10月下旬即可上盆。

Results: Large number of immunoreactive fibres was detected in lamina propria and muscularis mucosae. Strong staining of ganglion cells in the Auerbach's and the Meissner's plexus were observed on the normal specimens. There was very little or no immunoreactive fibre in the lamina propria and muscularis mucosae of the aganglionic bowel. However there was strong immunoreactivity in the perineurium of the hypertrophic nerve trunks in the submucosal and intramural layers of aganglionic segments.

结果： 正常肠段的粘膜固有层和粘膜肌层中有大量的P75NGFR阳性纤维，粘膜下和肌间神经丛中神经节细胞表现为P75NGFR强阳性，痉挛段肠管粘膜固有层和粘膜肌层中P75NGFR阳性纤维明显减少或缺如，粘膜下和肌间粗大神经纤维的神经束膜表现为P75NGFR强阳性，象一个环包绕在周围。

Strong staining of ganglion cells in the Auerbach's and the Meissner's plexus were observed on the normal specimens. There was very little or no immunoreactive fibre in the lamina propria and muscularis mucosae of the aganglionic bowel. However there was strong immunoreactivity in the perineurium of the hypertrophic nerve trunks in the submucosal and intramural layers of aganglionic segments.

结果： 正常肠段的粘膜固有层和粘膜肌层中有大量的P75NGFR阳性纤维，粘膜下和肌间神经丛中神经节细胞表现为P75NGFR强阳性，痉挛段肠管粘膜固有层和粘膜肌层中P75NGFR阳性纤维明显减少或缺如，粘膜下和肌间粗大神经纤维的神经束膜表现为P75NGFR强阳性，象一个环包绕在周围。

Results: Lateral extradural approach could be used to expose the second and third branches of trigeminal nerve,trigeminal ganglion,posterior vertical segment of the intrapetrosal ICA,abducent nerve and horizontal segment of the intrapetrosal ICA;lateral intradural approach could be used to expose the lateral,anteroinferior and posterosuperior venous spaces,almost all the cranial nerves within the cavernous sinus and horizontal segments of the intracavernous ICA;superior approach could be used to expose the medial,lateral and posterosuperior venous spaces,medial side of the anterior genu,anterior vertical and clinoidal segments of the intracavernous ICA and the lateral side of the hypophysis.

结果：外侧硬膜外入路可用于显露三叉神经第2、3支，三叉神经节，海绵窦内颈内动脉后垂直段，外展神经及岩骨颈内动脉水平段；侧方硬膜下入路可用于显露海绵窦外侧及前下，后上静脉间隙，以及所有走行在海绵窦内的颅神经和海绵窦内颈内动脉水平段；上方入路可用于显露海绵窦内侧、外侧及后上间隙，海绵窦内ICA水平段、前膝、前垂直段及床突段的内侧面，以及垂体的外侧面。

Pollen morphology and exine ultrastructure Pollen exine ultrastructure of five species in Stachyurus and one species of its sister group, Crossosoma californicum, were investigated under transmission electron microcopy for the first time. The pollen morphology of Crossosoma californicum was studied under Scanning Electron Microcopy.

花粉形态学和外壁超微结构在透射电镜下研究了旌节花属5个代表种和1个外类群的花粉外壁超微结构，并在扫描电镜下研究了外类群Crossosomataceae 1个代表种的花粉形态学特征，结合前人的研究，探讨了上述性状的分类学意义。

Under the treatments of ETP, the plant height and diameter, and length between adjacent double burls in the green bud stage were decreased and the effects were strengtheded along with the content of ETP increasing. The treatment of 50 mgL^(-1) postponed the time of green bud appearing 14 days and the florescence 9 days, respectively; as far as the treatments of 100 mgL^(-1) and 200 mgL^(-1) ETP were concerned, no green bud and flower appeared.

ETP处理下绿蕾中期的株高、株径和节间长度均比对照降低，且表现出随处理浓度增加效果逐渐增强的趋势。50mgL^(-1) ETP处理下绿蕾出现时间和始花时间分别比对照推迟了14天和9天；100和200mgL^(-1) ETP处理则不能正常形成绿蕾和开花。

The spiracles are bigger and more near dorsal line than all the others. Their trachea branches are taper and abundant and form short tracheoles. This gave the tufted form to the trachea, which appeared shrubby. The trachea branches that arranged in other segments gave them a tree-like look. They do not directly supply oxygen for tissues, but they suspend in the hemolymph and attach to the muscle of the heart, so that they can move in constant with the contraction of the heart muscle.②The 8th segment tracheal tufts have thinner cuticle and basal lamina than that of the other trachea, and have much pad cuticle, which is appropriate for them to move, and their basal lamina have small pores, which are favour of the permeation of gas.③Injecting the methylene blue into the larvae to label hemolymph, we observed that the hemolymph flow into the heart through the 8th segment tracheal tufts.④Normally these tracheal tufts have all kinds of hemocytes, which are abundant in the tufts. A large number of hemocytes released from tissues attach to the tufts by changing their structure when anoxic stress happen.

气管分支细短而丰富，形成气管簇，呈灌木丛状（其它各节气管则呈粗树干状分布），它不是直接给组织供氧，而是悬浮在血液中，与心肌相连接，随着心肌的收缩而不断运动；②气管簇的内膜及底膜都比其它各节的薄，且管壁内膜具有更多的适合运动的垫状表皮，底膜还有小孔结构，这有利于气体的通透；③向体内注射蓝色的亚甲基蓝标记血液发现，血液流动方向是经该气管簇后而流回心脏；④正常情况下，气管簇处有各种各样的血细胞聚集，当缺氧胁迫时有大量的血细胞从组织中释放出来，通过变形而紧贴气管簇，有利于气体的交换；⑤给体内注射无色的亚甲基蓝发现气管簇比其它各节更易变蓝，说明该处具有更高的获氧能力。

The difference in yield, its components, basic characteristics such as mean size and bare tip length of cobs, plant height, base internode diameter, secondary root number per plant, LAI and DMW at the same measuring date, between the three treatments were insignificant respectively; the optimized fertilization made the three leaves around corn cob rather smaller, the cob leaf slightly thinner, a decrease of the cob leaf chlorophyll content at greater rate at the later stage, and dry matter accumulation amount slightly reduced from flowering to grain filling.

在优化施肥、秸秆还田优化施肥及传统施肥条件下，夏玉米穗长、穗粗、秃顶长、株高、基部伸长节间粗度、单株各层次生根条数、同一时期的叶面积指数和干物质积累量无显著性差异。在优化施肥条件下，夏玉米棒三叶总叶面积略微减少，穗位叶叶片略微变薄，生育后期穗位叶叶绿素含量下降稍快，吐丝-收获的干物质积累量略有下降。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。