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With aggravation of drought stress, ZXY04P-75 and ZXY04P-201 increased in proline content while that of ZXY03P-173 and ZXY04P-239 increased initially, reaching the peak at the 8th day, then declined. And the rate of net photosynthetic declined notably with the intensity of drought stress, The minimum of decline rate of net photosynthetic is ZXY04P-201. 4. The results of photosynthetic mechanism for 4 Dactylis glomerata L. show: the net photosynthetic rate, transpiration rate,stomatal conductance and chlorophyll decreased dramatically, Compared with weak drought resistance ZXY04P-239,the net photosynthetic rate, transpiration rate, stomatal conductance and chlorophyll in the leaves strong drought-resistance ZXY04P-201 decreased slowly.

连续水分胁迫及复水条件下4份鸭茅抗旱机理的研究表明，叶片水分饱和亏缺随着干旱胁迫强度的增加而增加，其中变化幅度最大的是ZXY04P-239，最小的是ZXY04P-201；ZXY03P-173和ZXY04-201质膜相对透性和可溶性糖含量随着干旱胁迫强度的增加而增加，而ZXY04P-75和ZXY04P-239出现单峰变化，在胁迫第8d后达到最大，然后下降；ZXY03P-173和ZXY04P-239脯氨酸含量在干旱胁迫第8d达到最大，而ZXY04P-75和ZXY04P-201的脯氨酸含量随着干旱胁迫程度的加深而逐渐达到最大；4份材料叶片的净光合速率随着干旱胁迫强度的增加而减小，其中ZXY04P-201的净光合速率下降率胁迫至12d时为最小。

The population density was different at various altitudes, and among them, the biggest one was the population C. The life tables showed that the death rates at age class Ⅱ,Ⅲ,Ⅳ were higher, so the death rates decreased with the diameters class increasing, after age class Ⅳ or Ⅴ, however, the death rates increased again. The expected life was longer before class Ⅳ, and decreased gradually with the age increasing. The survival curves of different populations was close to Deevey Ⅲ type. The dynamics of C.

不同海拔的种群密度存在差异，其中C种群密度最大；静态生命表显示，种群在Ⅰ、Ⅱ径级时死亡率较高，随着年龄增加，死亡率逐渐降低，但到了Ⅳ、Ⅴ径级，由于生理衰老死亡率又上升；种群期望寿命在Ⅱ、Ⅲ、Ⅳ径级较高，随着年龄增加，期望寿命逐渐下降；不同海拔的米槠种群的存活曲线均接近于Deevey Ⅲ型。

Thunbergii trees were established, and the sun survivorship curves were drawn with field data. The results showed that in the three plots, the height and basal diameter growth of regenerated young P. thunbergii trees had exponential, linear, and quadratic functional relations with age and the age structure was of spindle, discrete, and pyramid types, respectively. Most of the regenerated young trees were distrbuted at 0.3-1.2 m from their nearest standing trees, and the individuals of the young trees decreased near to or far from the nearest standing trees. Inplots Ⅰ and Ⅲ, the expected average life of regenerated young P. thunbergii trees had a decreasing trend with their increasing age, and the survival number of the population also decreased with increasing population age. The survivorship craves of regenerated young P. thunbergii trees in the two plots approximated to the type of Deevey Ⅱ, indicating that the young P. thunbergii populations in the plots were at stable development stage. The population structure of regenerated young P. thunbergii trees in plot Ⅱ was lesser integral, suggesting that the population was of declining types being related to human disturbance, slope and other environmental factors.

结果表明：(1) 3个样地中幼龄植株高生长、基径生长与年龄均分别呈指数函数、直线和二次函数关系；(2) 3个样地黑松幼龄植株年龄结构存在着明显差异，分别表现为纺锤形、残缺型和金字塔型；(3)幼龄植株主要集中分布在距最近立木0.3~1.2m，离立木越近或越远幼龄植株均逐渐减少；(4)对样地Ⅰ和样地Ⅲ黑松幼龄植株生命表和存活曲线的分析表明，随年龄的增加，黑松幼龄植株生命期望值基本上呈递减趋势，黑松幼龄植株种群存活数也随着年龄的增加而降低；样地Ⅰ和样地Ⅲ黑松幼龄植株种群存活曲线近似于Deevey Ⅱ型，表明2个样地黑松幼龄植株种群处于稳定发展阶段；(5)样地Ⅱ幼龄植株种群结构很不完整，表明该种群属于衰退型，与人为干扰及坡度等有关。

Dictamnus dasycarps Turcz. also have insecticidal activity to Ostrinia furnacalis, When the concentration was 10g/ml, correct decreased rate reached 92.86%, When the concentration was 0.675ml/g, the correct decreased rate reached 3.57%; Dictamnus dasycarps Turcz. at the range of testing concentration have lower stomach toxic effects to Ostrinia furnacalis.

通过白鲜皮对玉米螟杀虫活性的初步研究表明：白鲜皮对玉米螟表现出很强的拒食活性，在测定浓度范围内其拒食活性均在80％以上，最高可达97.22％。；白鲜皮提取液对玉米螟也有一定的毒杀活性，当浓度为10g／ml时其校正死亡率可达到92.86％，浓度为0.675ml／g时校正死亡率仅为3.57％；白鲜皮在测定浓度范围内对玉米螟的胃毒活性较低，最高才42.86％。

Results showed that the monomer conversion increased slightly in the presence of the crosslinking agents The size of particles decreased slowh as the amount of cmsslinking agent increased.and the size distribution of the particles broadened at a higher amount of cmsslinking agent Divinyl benzene was more effective than ethyl glycol dimethyl methacrylate to make polymer crosslinked.During alkali treatment process,void latex particles can be obtained when no DVB or less than 0.5 wt％ of EGDMA was used,while muhihollow structure was generated when DVB or more than 1.0 wt％ of EGDMA was introduced.The volume expansion of the particles decreased with increasing the amount of emsslinkirlg agents.

结果表明，体系中加入交联剂后，单体转化率都有不同程度的提高；随交联剂用量的增加，乳胶粒粒径略有减小，交联剂用量较高时，乳胶粒粒径分布加宽；二乙烯基苯的交联效率稍高于双甲基丙烯酸乙二醇酯；不加入交联剂及EGDMA用量低于0.5%时，处理后乳胶粒呈空腔结构，加入DVB及EGDMA用量高于1.0%时，处理后乳胶粒呈多孔结构，并且乳胶粒体积增量随交联剂用量的增加而减小。

Results: Mast cells in uterus were mainly distributed in the myometrium, only a few in the endometrium. After ovum implantation ,the mast cells were comparatively less at the place of implantation. The number of mast cells of early and late pregnancy(1～5 dyas, 15～19 dyas) was apparently higher than that during middle pregnancy(P＜0. 05). Stained by alcian blue-safranin, both red and reddish blue mast cells decreased gradually in number during pregnancy, but the proportion of blue mast cells was increased. Critical electrolyte concentration of mast cells decreased as time went on.

结果：(1)肥大细胞主要分布于子宫肌层，子宫内膜较少，且胚泡植人部位的肥大细胞明显少于非植入部位；(2)妊娠早期(孕1～5d)和妊娠后期(孕15～19d)肥大细胞数显著多于妊娠中期(P＜0.05)；(3)Alcian蓝藏红组化染色后，可见妊娠过程中红色和红蓝混合色肥大细胞逐渐减少；蓝色肥大细胞所占比例逐渐增大，孕9～19d肥大细胞几乎全部为蓝色；(4)肥大细胞临界电解质浓度值随妊娠时间的推移而变小。

Essential hypertension caused by neurovascular compression of the left ventrolateral medulla was associated with malbalance of vasomotor center in the dorsal medulla. The possible pathogenesis was the following:① An irritation of the left RVLM by pulsatile compression of an ectatic vessel would increase activity of central sympathetic neuron.② Neurovascular compression at the REZ of the cranial nerves Ⅸ and Ⅹ decreased excitation of parasympathetic nerve.③ Decreased sensitivity of afferent inputs to neuron of nucleus tractus solitarii in the sensory area lead to hyperactivity of central sympathetic nervous system due to pulsatile compression of the left RVLM.④ Neurocompression of the left RVLM and REZ in the left cranial nerves Ⅸ and Ⅹ lead to an overactivity of central renin angiotensin system.

3，结论：左侧延髓腹外侧Ⅸ、Ⅹ颅神经REZ动脉血管压迫所导致的高血压的发生与左侧延髓血管运动中枢对血压的调节失衡有关，其可能机制是：①左侧RVLM在搏动性血管压迫刺激下，中枢交感神经元活性增高；②左侧Ⅸ、Ⅹ颅神经REZ受压导致副交感神经兴奋性降低；③感受区孤束核神经元接受迷走神经传入冲动的敏感性减低，导致中枢交感神经活性增高；④左侧RVLM及Ⅸ、Ⅹ颅神经REZ受压引起中枢RAS活性增加。

Correspondingly,the CMC of CTAB and SDS decreased slightly,while the CMC of their equimolar mixture decreased almost a half.

相应的单一体系的CMC值变化不明显，而CTAB-SDS体系的CMC却减少近一半。

The results showed that in the HDT 30th day, the orthostatic tolerance decreased significantly (P.01) in control group compared with pre-HDT, but in the limb muscular group and bicycle ergometric group, the orthostatic tolerance decreased insignificantly compared with pre-HDT.

结果发现：卧床第30 d，对照组的立位耐力较卧床前显著降低(P.01)，而下肢肌力训练组和自行车功量计训练组的立位耐力较卧床前有所降低，但未达到显著水平。

After avilamycin 8mg/kg was fed to Cyprinus carpio, the quantity of the intestinal aerobic and the facultative anaerobic bacteria, the percent of Enterobacteriaceae, and the quantity of Lactobacillus decreased significantly on the 14~ d, at the same time , the percent of Flavobacterium increased evidently, the quantity and percent of Bacteriodes decreased evidently during the first 28 d of the experiment.3 After Cyprinus carpio was fed with narasin, the percent of Corynebacterium increased.

投喂阿维拉霉素8mg／kg在试验第14d使鲤肠道好氧及兼性厌氧菌总数、肠杆菌科所占百分比、乳杆菌属数量显著降低，黄杆菌属所占百分比显著升高；在试验的前28d使拟杆菌属数量及其百分比显著下降。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷