发生

These results revealed that the pollen chamber developmental pattern passed through four phases. Firstly, a group of nucellar cells at the micropylar end elongated longitudinally. Thereafter, the uppermost nucellar cells at the micropylar end initiated PCD; and these elongated cells undergoed PCD in a basally and laterally oriented direction to form a cavity.

贮粉室的形态发生可分为4个阶段：最先是位于珠孔端的几层珠心细胞纵向地伸长；接着，珠孔端最顶部的珠心细胞发生PCD；然后，那些已经纵向伸长的珠心细胞向基地和侧向地依次发生死亡，产生贮粉室空腔；最后，珠孔端的珠心表皮细胞发生开裂，形成贮粉室的开口。

It was studied that the process of the somaticembryogenesis and analyzed that the problem existing in technique of in vitro morphogeny in Hevea to ground for that to probe into the method to improve the technology of tissue culture in Hevea with the techniques of transgene and to improve the ability of somatic embryogenesis and plant percentage of embryoid in Hevea.

本试验以巴西橡胶树，海垦2的花药为外植体，诱导体胚的发生，对体细胞胚发生方式及发育过程做了一系列的组织学观察，分析了橡胶树体细胞胚发生的各个过程以及畸形胚的形成原因，初步结果如下： 1 橡胶花药体细胞胚主要以间接方式发生。

It has been proved by previous studies that peripheral nerve injury can induce a series of changes of expression of some neural active material and their receptors either in the somata or in the terminals of the damaged primary afferent neurons and motoneurons. These changes may reflect a re-ordering of metabolic priorities so that the synthesis of trophic factors or growth-associated proteins augmented while that of neurotransmitter-related proteins decreased.

以往的研究表明，周围神经损伤能够引起受损神经元(包括初级传入神经元和运动神经元)的胞体或终末内某些神经活性物质及其受体的表达发生一系列变化，其中与神经生长和营养有关的物质常发生上调，而与神经传递有关的物质则发生下调；与此同时，受损神经元的周围常伴随发生胶质反应及神经胶质增生等变化。

Take place, do something to protect, on the earth's surface, take precautionary mea sures, vibrations,"earthquake belts", have, likely to occur, tremble, to resist earth quake shocks, crack, in the future, destroyed, predict.

发生了，在地的表面做一些保护措施，做一些细心的措施，常常发生地震的地震带。好象经常发生，会震动。防止地震发生的缓冲装置在未来会预计被爆炸

Results In most patients, the first urination occurred in 2～3 hours after renopuncture, uroschesis developed in 4～6 hours after renopuncture. The rate of uroschesis in teenager was higher than that in adult, and it was also higher in patients with prone position than patients with supine position. The rate reduced by induced urination in 2 hours after renopuncture.

结果 多数患者在肾脏穿刺术后2～3小时完成第1次自主排便，尿潴留的发生时间以术后4～6小时为最多，少年组尿潴留的发生高于成年组、术后处于俯卧位的患者较处于仰卧位的患者更易发生尿潴留，术后2小时采用诱导排尿方法能降低术后尿潴留的发生。

Present results also suggested that zebrafish as a quality model for study on vasculogenesis and angiogenesis during embryonic development and screening for angiogenic enhancer or inhibitors.

斑马鱼是研究胚胎发育早期微血管发生和血管发生的极佳动物模型，可用于促血管发生或抑制血管发生药物筛选。

In recent years the term was gradually abandoned, not only because it occurred in bedridden patients, many Also occurred in the seat, are now used more oppressive ulcers or pressure sores, from the pathology, physiology point of view more accurately summed up the essence of this disease [1], which is common complication of one, and very Easily lead to infection, once the deterioration of patients will bring great suffering and even death caused by sepsis, the nursing work to be tackled is the "stubborn disease."

近年来这一名词渐被废弃，因为它不仅发生于卧床病人，许多也发生于坐位，现多采用压迫性溃疡或压疮，它从其发生的病理、生理学角度更准确地概括了本病的实质[1]。它是临床常见的并发症之一，且很容易引起感染，一旦恶化会给病人带来极大的痛苦，甚至发生败血症而导致死亡，故是护理工作需攻克的&顽症&。

The results showed that Golgi complex was an organelle that experienced a series of changes during four stages of the oogenesis of Bullacta exarata , which were oogonia, early vitellogenic oocyte, mid-vitellogenic oocyte and end vitellogenic oocyte.

结果表明，在泥螺卵子发生的四个时期即卵原细胞期、卵黄发生早期、卵黄发生中期和卵黄发生后期，卵母细胞内高尔基复合体经历了一系列的变化。

The mechanism of instability wrinkling in the process based on minimum energy principle is revealed, uniform mathematic description of the wrinkling wave on the strip of in-plane bending is established, the internal and external energy is deduced by energy method, and a uniform criteria of internal and external wrinkling is established; then how to combine the criteria with the FEM simulation system to make the numerical prediction of wrinkling into reality is also resolved in the paper. The effects of the forming parameters on the deforming result are analyzed by the uniform predict criteria. The results show as follows: as the compress width increase, external wrinkling first come into being, then internal winkling do, and finally in-plane bend occur; the loading wedge angle increase, internal winkling first come into being, thenin-plane bend do, and finally external wrinkling occur; in-plane bend is possible to occur with a increase of the strain-hardening exponent and the strength coefficient; and the effect of the friction factor may be ignored.

2揭示了板带不均匀压下面内弯曲成形过程基于能量原理的失稳起皱机理，提出了统一的描述内外缘起皱波形的函数，采用变分法推导了服从该波形函数的内外缘起皱能，建立了统一的起皱预测准则；将新建立的统一的起皱预测准则引入到数值模拟系统IBS中，数值预测结果与实验结果的吻合较好；分析了成形过程各参数对起皱的影响规律：随着接触变形区宽度的逐渐增大，先是发生外缘起皱，然后发生内缘起皱，进而才出现稳定成形；随着实际加载楔角的增大，先是发生内缘起皱，然后发生稳定成形，进而出现外缘起皱；硬化指数和强化系数增大，易于稳定成形；摩擦因子对起皱的影响不明显；而且接触变形区宽度对起皱的影响最大。

Lemon Tree--Fools Garden I'm sitting here in a boring room It's just another rainy Sunday afternoon I'm wasting my time, I got nothing to do I'm hanging around, I'm waiting for you But nothing ever happens -- and I wonder I'm driving around in my car I'm driving too fast, I'm driving too far I'd like to change my point of view I feel so lonely, I'm waiting for you But nothing ever happens, and I wonder I wonder how, I wonder why Yesterday you told me 'bout the blue blue sky And all that I can see is just a yellow lemon tree I'm turning my head up and down I'm turning, turning, turning, turning, turning around And all that I can see is just a another lemon tree sing da da da da da, de da da da da da da, de da da da de de da I'm sitting here, I miss the power I'd like to go out taking a shower But there's a heavy cloud inside my head I feel so tired, put myself into bed Where nothing ever happens -- and I wonder I so lation is not good for me I so lation -- I don't want to sit on a lemon tree I'm stepping around in a dessert of joy Baby anyhow I'll get another toy And everything will happen -- and you'll wonder I wonder how I wonder why Yesterday you told me 'bout the blue, blue sky And all that I can see is just another lemon tree I'm turning my head up and down I'm turning turning turning turning turning around And all that I can see is just a yellow lemon tree and I wonder, wonder I wonder how I wonder why Yesterday you told me 'bout the blue blue sky and all that I can see and all that I can see and all that I can see Is just a yellow lemon tree

柠檬树-愚人花园我坐在这里，在一个无聊的房间这是周日下午又下雨我浪费时间，我没有任何关系我游逛，我等着你但是，没有什么发生-我不知道我驾驶我的赛车我的驾驶速度太快，我驾驶太远我想改变我的观点我感到非常孤独，我等着你但是，没有什么发生，我不知道我不知道，我不知道为什么昨天你告诉我'回合蓝蓝天和所有我能看到的只是一个**柠檬树车削我我的脑袋向上和向下我转过身来，转过身来，转过身来，转过身来，扭转和所有我能看到的只是另一个柠檬树唱大大达大达，德大达大达大达，德大达达日德大我坐在这里，我想念的权力我想出去洗淋浴但是，有一个沉重的云我的脑袋里我感到非常疲惫，把自己变成床如果没有什么发生-我不知道我谨此刺激不适合我我谨此化-我不想坐在一个柠檬树我加紧四处甜品的喜悦婴儿反正我要去另一个玩具一切会发生-你会怀疑我不知道我想知道为什么昨天你告诉我'回合蓝，蓝天和所有我能看到的只是一个柠檬树车削我我的脑袋向上和向下我谈到转折点转折点转折点脱困和所有的，我可以看到仅仅是一个**柠檬树我不知道，不知道我不知道我想知道为什么昨天你告诉我'回合蓝蓝天和所有的，我可以看到和所有的，我可以看到和所有的，我可以看到仅仅是一个**柠檬树

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。