少

A case is made that areas of chronic demyelination arise because of concurrent loss of oligodendrocyte progenitor cells and oligodendrocytes and that because of the slow rate of repopulation that occurs in old individuals the recruited OPCs are not exposed to the acute inflammatory environment required to generate remyelinating oligodendrocytes.

一种说法是慢性脱髓鞘的区域产生系因少突胶质原始细胞和少突胶质细胞并存，而且因老年个体中缓慢的再生率，补充的OPCs没有暴露于产生髓鞘再生少突胶质细胞需要的急性炎症的环境。

Fig 4 Few of rough endoplasmic reticula, mitochondrid and co llagen can be seen in the cytoplasm of fibroblast, the ribosome of rER is degran ulated, the nucleous is abnormal, there are a lot of granule (maybe the antisens e oligodeoxynucleotide) in the cytoplasm TEM×5200

图4反义核酸组的瘢痕成纤维细胞粗面内质网较少、有脱颗粒现象，线粒体少，胞核畸形，胞内有吞噬颗粒，细胞周围胶原纤维较少TEM×5200

Corolla 5- or rarely 4-lobed, salverform, funnelform, urceolate, or rarely rotate, lobes overlapping to right or left, rarely valvate.

花冠5或者很少4裂，高脚碟状、漏斗状，瓶形，或者很少旋转状，裂片向右或者向左重叠，很少镊合状排列。

Herbs or shrubs, rarely trees, erect, rarely scandent, mostly glabrous, rarely dioecious.

草本或灌木，很少乔木，直立，很少攀缘，多数无毛，很少雌雄异株。

Stamens 4, adnate to corolla tube near base, rarely to or above middle, included; anthers basifixed, coherent in pairs, rarely free, thecae divergent at base, not or rarely confluent at apex, dehiscing longitudinally from arcuate slits; connective not projecting; staminode 1, adnate to adaxial side of corolla tube.

雄蕊4，贴生于花冠筒近基部，很少对或在上部中间，包括；花药基着，成对连着，很少离生，囊分叉的在基部，并非或很少汇合的在先端，来自弧曲的裂缝的纵向开裂；药隔不凸出；退化雄蕊1，贴生于花冠筒的正面的边。

On the base of reviewing the development of NSP models, some deficiencies of existent models are analysed and listed as follows: most models can be applied only to very small watershed; mechanism models involve too many parameters which can not be calibrated properly by limited data; amoung practical models, empirical models are much more common than mechanism models; most models are focus on the conservative soluble pollutants rather than non-conservative and particulate pollutants; almost all models rely highly on the measured data, and there are fewer studies about the load estimation for ungauged areas.

本文在评述非点源污染模型研究进展的基础上，分析了现有模型的不足，主要有：大多数模型只能适应于很小的流域面积；机理类模型参数过多，率定困难，应用效果不理想；实用模型中，经验类模型多，机理类模型少；对保守性的液态污染物研究得较多，对非保守性和固态污染物研究得较少；各类模型均高度依赖于实测资料，无资料地区的模型或预测方法研究得很少。

Leaves few to many, basal or along stem and opposite, seldom in whorls of 3 or alternate, unequal to equal in a pair; leaf blade puberulent to villous or velutinous, rarely glabrous, base cuneate to cordate, rarely attenuate.

叶少数到多数，基部的或沿茎和对生，成对不能胜任等长的很少3轮生或互生；对具长柔毛或茸毛，很少无毛，基部楔形到心形被微柔毛，很少渐狭的叶片。

It was Shaolin boxing you taught that Laurie boy, but your own way of fighting belongs to the Kongdong School.''I must apologize,' said the old eunuch wheezingly.

太后厉声喝道：&好奴才，你……你……装神弄鬼，以少林……少林……少林派武功教小桂子，原来自己是崆峒派的。&

The green stem, big leaf, few branch, mauve flower type and the purple stem, big leaf, few branch, purple flower type were classified into one class. The green stem, small leaf, multibranch, mauve flower type, the green stem, big leaf, multibranch, purple flower type, the green stem, small leaf, multibranch, mauve flower type, and the purple stem, small leaf, multibranch, purple flower type were classified into another class.Conclusion The artificially cultivated S.

其中，绿茎、小叶、少分枝和紫色花类型与普通类型各自聚为一类，绿茎、大叶、少分枝和淡紫色花类型与紫红茎、大叶、少分枝和紫色花类型聚为一类，绿茎、小叶、多分枝和淡紫色花类型，绿茎、大叶、多分枝和紫色花类型，绿茎、小叶、多分枝和淡紫色花类型与紫红茎、小叶、多分枝和紫色花类型聚为一类。

The contents of valine and leucine of the nematode are obvious higher than that of others in different kinds of amino acid of the nematode. The analysis of irritant factors playing a important role on the production of predacious organs showed that live nematode larva or its lytic solution can cause the production of predacious organs of the strain A1, but the latter produced less than the former .The live larva of the third stage produced more predacious organs than one of the first and the second stage , so the number of predacious organs that are produced by the live larva of first and the second the stage are less than the live larva of the third stage .

刺激捕食器产生的因素在线虫体来说：活的线虫幼虫和其裂解液可以刺激捕食线虫性真菌—少孢节丛孢菌菌株产生捕食线虫性结构——捕食器；但后者刺激产生的捕食器数量较少；有活力的第三期幼虫与第一、二期幼虫相比较，可以刺激菌株产生较多的捕食器；但少孢节丛孢菌对第一、二期幼虫作用速度快；与第三期幼虫相比，第一、二期幼虫易被捕获致死。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。