叶质的

Based on Phylogenetic analysis of sequences from these 10 phytoplasmas using PAUP (phylogenetic analysis using parsimony) software, these phytoplasmas could be classified into five groups. These phytoplasmas groups and strains were: group 1, sweetpotato witches' broom, mainland China strain of sweetpotato witches' broom, peanut witches' broom and Ipomoea obscura witches' broom; group 2, loofah witches' broom; group 3, elm yellows; group 4, rice yellow dwarf and sugarcane white leaf disease; group 5, New Jersey strain of aster yellows and western strain of aster yellows.

从spacer序列堆衍的亲缘演化树显示这10种植物菌质体可分为5群：第一群，甘薯簇叶病、甘薯簇叶病、花生簇叶病及细花牵牛簇叶病等菌质体；第二群，丝瓜簇叶病菌质体；第三群，榆树黄化病菌质体；第四群，水稻黄萎病及甘蔗白叶病菌质体；第五群，翠菊黄化病菌质体。

The clear water that day of the 2-3 that irrigate air wants when watering is advisable, and when watering, should irrigate in plant ' cup ' in shape, in irrigating the matrix in flowerpot directly, even if slant in the matrix inside the basin dry, xie Beizhong has the word of water, plant still grows good, but if be the humidity in basin earth only big, and Xie Beizhong is anhydrous a plant is lacklustre, occurrence leaf easy hair is yellow wait for harmful response.

浇水时要浇晾2-3天的清水为宜，且浇水时要浇在植株的'杯'状中，不要直接浇在花盆的基质中，即使是盆内基质中偏干，叶杯中有水的话，植株依然生长良好，但假如只是盆土中湿度大，而叶杯中无水则植株无生气，出现叶子易发黄等不良反应。

The heat generation curves of seven rubber materials used in tires with the changes of temperature have been obtained by using Dynamic Mechanics Analysis technique on NETZSCH DMA242 instrument, knowing that the heat generation of every other rubber materials except inner liner rubber changes lightly alone with the temperature within 10℃～80℃. According to the Fourier law, the heat transfer coefficients of tire rubber are measured by stable method on self-made experiment instrument. The coefficients changes lineally within 20℃～80℃ and the relation formulas λ=λ〓+bt are given out attached with λ〓 and b. The specific heat of tire rubber are measured on Differential Scanning Calorimeter NETZSCH DSC204 and the relations with temperature are linear and the formula is c=c〓+bT, where c〓 and b gained from experiment result data are presented in the paper. The heat convection coefficients on the surface of rolling tire are measured according to the principle of heat-mass transfer analogy principle after simplifying rolling tire into rotating disk with straight movement on wind channel. The relation with rotation speed of disk is linear as h=5. 399+0.0258n and the relation with straight line speed of tire is linear too, h=

论文采用动态力学分析技术，使用NETZSCH DMA 242型实验仪，获得了轮胎用七种胶料的生热率随温度变化曲线，确知除内衬层胶以外，其它各种胶料在一般胎温范围内（10℃～80℃）的生热率随温度变化不大；轮胎胶料的导热系数根据傅立叶定律的基本原理，采用稳态法在自行搭建的实验台上进行测试，结果表明，材料的导热系数在20℃～80℃的温度范围内随温度呈线性变化，论文给出了各种材料导热系数的线性变化的关系式λ=λ〓+bt及其λ〓和b的值；轮胎胶料的比热运用差式扫描量热原理，在NETZSCH DSC204型DSC实验仪上进行测试，结果表明，胶料的比热随温度的变化呈线性变化，其关系可用c=c〓+bT表示，文中给出了根据实验数据拟合的c〓、b的值；对轮胎表面的对流换热系数的测定，本文先将滚动的轮胎简化为有直线运动的旋转圆盘，而后采用萘升华热质比拟技术，在风洞中测量了滚动轮胎表面的对流换热系数，结果表明，圆盘表面对流换热系数与转速呈线性关系，即h=5.399+0.0258n，轮胎表面对流换热系数与其直线运动的速度呈线性关系，即h=

The spore germination and gametophyte development of 21 ferns are studied. It indicates that :① the development period of prothallium and young sporophyte of the same species is different due to seeding time of spores;② the optimal temperatures of spores germination and gametophyte development of 21 ferns are about 15 -24 ℃;③ the rate of spore germination of rare ferns is much lower than the ferns which occur large populations in nature;④ the treatment with GA 3 can accelerate the germination of the spores;⑤ the prothallium changes from large to small, green to yellow when young sporophyte comes out. The prothalliums of all 21 ferns die away after the appear of the 3rd leaf of sporophytes;⑥ shapes of the 1st and 2nd leaves of the young sporophyte are different from those emerged later;⑦ spores cultured in dark can not germinate;⑧ a prothallium can develop only one young sporophyte though it has many archegoniums, and the spore propagation with leaf mould substrate is an economical method.

摘 要：以腐叶土为培养基质，对 21 种蕨类植物进行了孢子萌发和原叶体发育的研究，结果表明：①不同时期播种的同种蕨类的孢子，发育出原叶体和幼孢子体所历经的时间长短不同；②孢子萌发和配子体生长发育的适宜温度约为 15 ～ 24 ℃；③稀有蕨类的孢子萌发率低，而在野外能形成较大种群的蕨类的孢子萌发率高；④用 GA 3 处理孢子可以促进萌发；⑤当原叶体上长出幼孢子体时，原叶体由大变小，由绿变黄， 21 种蕨类的原叶体都在幼孢子体上长出第 3 片叶时消失；⑥幼孢子体上长出的第 1 、 2 片叶在形态上与以后长出的叶不同；⑦孢子萌发需要光；⑧ 1 片原叶体尽管有多个颈卵器，但仅发育出 1 株幼孢子体；⑨利用腐叶土进行蕨类孢子繁殖是一种经济实用的繁殖方法。

Leaves 1-foliolate, rarely 3-foliolate or simple; petiole usually articulated with base of leaf blade, usually conspicuously winged; leaf blade subleathery to leathery, with dense pellucid fragrant oil dots, margin crenulate or rarely entire.

叶单身复叶，单叶或很少掌状3小叶叶柄通常与叶片基部间有关节，通常明显具翅；叶片近革质到革质，具浓密透明芳香的油点，边缘具细圆齿或很少全缘。

Fragmentation behavior of xanthones by tandem mass spectrometry and analysis of the constituents in four crude extracts from Halenia Elliptica D. Don Firstly, in order to find the relationship between the structural characterization and the mass spectrometric behavior, eight xanthones isolated from Halenia Elliptica D. Don and nine semi-synthetic xanthones was systematically investigated by positive and negative ion ESI-MS〓 and APCI-MS〓.

〓酮类化合物的质谱裂解规律及椭圆叶花锚活性提取物中相关成分的分析研究首先，采用正负离子两种检测模式下的ESI-MS〓和APCI-MS〓方法对从药用植物椭圆叶花锚中提取分离出来的8个〓酮类单体和9个〓酮类合成物进行了详细、深入的质谱裂解规律研究，考察了化合物结构与质谱行为之间的相关性。

We didn\'t find activated points in cerebellum and deeper brain.3.Acupuncture of sham point can significantly activated BA2,6,8,13,21,37,40,44,45,47,putamen and other areas.Both the left and right side of the brain have activated points,but points on the right side are more than those on the left.Both sides of middle temporal gyms,parietal lobule,supramarginal gyms and the lentiform nucleus have obvious activated points.The activated points mainly concentrated in the cerebral cortex,the deep-activated are mainly in the putamen.4. Sham needling in sham point can significantly activate BA6, 8,9,10,18,21,37,40,43,44.The activated points are mainly distributed in the right side of the brain.The left side also has some activated points;5.In the comparasion of Acupunture and sham-needling in S J5,we find that BA8 and cerebellum have distinct regional activated points;6.In the comparasion of acupuncture in SJ5 and sham point,we find BA2 and left cerebellar regions have activated points;7.Sham needling in S J5 compared with sham point,we find BA7,8,9,18 and other areas have activated points,the main activated points are at the left brain.It is not difficult to find that the distribution of activated points are mainly in the middle brain,no obvious activated points at the temporal lobe.

结果：通过对数据的处理和分析，我们初步发现：1、外关穴真针刺能显著激活Brodmann area45、37、44、40、22、13、37、47区、海马、杏仁核、黑质等区域，小脑左侧更明显，左侧颞叶皮层激活点多于右侧，且脑部左侧深层激活点多于右侧；2、外关穴假针刺能显著激活BA46、44、41、13、40、37、19区等区域，激活点主要集中表现在大脑皮层，以颞叶为主，小脑及深部未发现明显激活点；3、非穴真针刺组结果分析初步表明，BA2、6、8、13、21、37、40、44、45、47区以及壳核等区域有激活点，大脑左、右侧均有激活点，但右侧更多，双侧颞中回、顶叶下小叶、缘上回及豆状核有明显激活点，激活点主要集中在大脑皮层，深部激活点主要在壳核；4、非穴假针刺能显著激活BA6、8、9、10、18、21、37、40、43、44区等区域有激活点，主要分布在大脑的右侧，左侧也有不少激活点，就其具体分布主要在颞叶和额叶，少部分分布在顶叶和枕叶；5、外关穴真针刺与假针刺对比发现，BA8区和小脑等区域有明显的激活点；6、外关穴真针刺与非穴真针刺对比发现BA2区、左侧小脑等区域有激活点；7、外关穴假针刺与非穴假针刺对比发现，BA7、8、9、18等区有激活点，主要反应点在左侧大脑的枕叶中回、楔叶，顶叶楔前叶及额上回、中回，就其分布不难看出主要在大脑中部，颞叶未见明显激活点。

According to distribution of bryophytes on different substances, the frequencies of Bazzania albifolia, Heteroscyphus coalitus and Homaliodendron scalpellifolium in evergreen broadleaved forests of Daweishan Nature Reserve are highest; those of Macrothamnium macrocarpum, Bazzania fauriana, Ptychanthus striatus, Pogonatum cirratum and Thuidium cymbifolium are higher. Additionally, Aerobryum speciosum, Trachycladiella sparsa, Taxiphyllum subarcuatum, Aerobryidium levieri, Lepidozia wallichiana, and Leucobryum bowringii are relatively common.

根据大围山常绿阔叶林内苔藓植物在不同基质上的生长分布情况，结合其甲凡J}rg另出现的频度可知白叶鞭苔、双齿异粤苔、以及刀叶树平醉是大围山常绿阔叶林内的三大优势种；南木醉、厚角鞭苔、皱尊苔、刺边小金发鲜和大羽醉在大围山常绿阔叶林内出现的频率也很高；此外气鲜、散生粗带醉、钝叶鳞叶鲜、莱氏毛扭醉、瓦氏指叶苔、以及狭叶白发鲜等在大围山常绿阔叶林内也有一定数量的分布。

Leaves persistent; petiole purple-green, 2-3.5 cm, glabrous; leaf blade abaxially gray-white, adaxially dark green and lucid, oblong-elliptic or elliptic, 10-14 × 3-6 cm, papery or subleathery, glabrous, pinnatinerved, lateral veins 8-12 pairs, base obtuse, apex caudate-acuminate, acumen 2-2.4 cm.

叶宿存；叶柄紫色绿色，2-3.5厘米，无毛；叶片背面的灰白色，正面深绿色和有光泽，长圆状椭圆形的或椭圆形， 10-14 * 3-6 厘米，纸质的或近革质的，无毛，羽状脉，侧脉8-12 对，基部钝，先端尾状渐尖，渐尖头2-2.4厘米。

Culm sheaths deciduous, narrowly triangular-rounded, 1/2–3/5 as long as internodes, thinly leathery, radially white-gray setose, longitudinal ribs conspicuous, margins densely ciliate; auricles and oral setae absent; ligule arcuate or nearly truncate, 0.5–1 mm; blade erect, triangular to linear-triangular, width nearly equal to apex of culm sheath.

脱落，狭三角形绕行的竿箨，节间，薄革质的1/2-3/5倍于，显眼的白色灰色具刚毛，长度肋骨，纤毛的边缘密的光线；叶耳和口头的刚毛无；叶舌弧曲的或近截形，0.5-1毫米；叶片直立，三角形到线形三角形，宽度差不多等于竿箨的先端。

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。