环的根

The synthesis methods of energetic salts and energetic ionic liquids(cations including triazole, tetrazole, bridged azole, hexamethyenetetrammonia, etc;and anions including nitrate, perchlorate, azide, tetranitratealuminate, polycyan anion, N,N'-dinitrourea, etc.) are reviewed, and the effects of cations, anions and their substitution groups on melting point, enthalpy of formation, density of the materials are summarized.

本文综述了多种含能盐和含能离子液体（阳离子包括三唑、四唑、双环唑、六次甲基四胺等；阴离子包括硝酸根、高氯酸根、硝基唑、叠氮根、四硝基铝、多腈基化合物、二硝基尿素等）的合成；结合其表征结果分析了阳离子上的取代基以及阴阳离子对它们的性能如熔点、生成焓、密度等的影响。

The main component of the celestial globe is a hollow bronze globe, with crisscross grids on the spherical surface, which are used to delineate the exact position of celestial bodies.

整个铜球可以绕一根金属轴转动，转动一周代表一个昼夜，球面与金属轴相交于两点：北天极和南天极。两个极点的指尖，固定在一个南北正立着的大圆环上，大圆环垂直地嵌入水平大圈的两个缺口内，下面四根雕有龙头的立柱支撑着水平大圈，托着整个天体仪。

All the compounds are characterized by IR and elemental analysis.we design and prepare a bipyridinium supramolecular compound and six coordination compounds, which are also characterized by IR, elemental analysis and X-ray structure analysis. According to X-ray structure analysis, hydrogen bonds and n-n stocking interactions participate in the architecture of three-dimensional framework [H2L1 (NO3)2 (H2O)2]n; one-dimensional zigzag coordination polymer [Hgl21.5CH3OH]n; binuclear metallamacrocycle (HgI2L2)2 3H2O; helical double-stranded one-dimensional coordination polymer [Co2(L2)2-2CH3OH]n; double-stranded one-dimensional coordination polymer [Co2(L3)2-CH3OH-CH3CN]n; and three-dimensional compound [Cu(C5H4NCOO)2(H2O)2]-H2O with hydrogen bonds, three-dimensional coordination polymer {[Cd(C5H6NCOO)2H2O]-DMF}n, which are indirectly obtained from the precursor ligand L3 through metal ion induced the hydrolysis of diamide and self-assembled with the hydrolyzate.

我们首次合成了一个双吡啶鎓超分子化合物和六个过渡金属配合物，并通过IR谱，元素分析和X-ray晶体衍射分析对它们进行了表征。X-ray晶体结构分析表明：超分子化合物[H_2L1·(NO_3)_2·(H_2O)_2]_n是由多种氢键和芳香环间的π-π堆积作用构建的三维无限结构；[HgI_2(L1)·1.5CH_3OH]_n是一维锯齿状配位聚合物；(HgI_2L2)_2·3H_2O是双核金属大环化合物；[Co_2(L2)_2·2CH_3OH]_n是具有一维双螺旋结构的配位聚合物；[Co_2(L3)_2·CH_3OH·CH_3CN]_n为一维双链结构的配位聚合物；以及由非直线形配体L3在金属离子Cu和Cd的诱导作用下发生水解，并且金属离子与水解产物——异烟酸根离子自组装，形成了三维氢键超分子化合物[Cu(C_5H_4NCOO)_2(H_2O)_2]·H_2O和三维配位聚合物{[Cd(C_5H_6NCOO)_2H_2O]·DMF}_n。

Then he took a second rope -- one used to tow cars, with large hooks at both ends -- and hooked one end to a loop on the guide rope. He wound the other end around a poplar and hooked the tow rope onto itself.

然后他拿出另一根绳，一根两端带有大钩子，通常用来拖车的绳，一端钩在导索的搭环上，另一端缠绕过一棵杨树后和这个拖绳本身钩在一起。

In this thesis, seed germination and root elongation test, early growth test were performanced by chemical spiked (Cu, Zn, Pb and Cd; Phenanthrenen, Pyrene; and1, 2, 4-trichlorobenzene) in four types of soils (red load soil, meadow brown soil, chestnut soil and dark brown soil) using wheat, Chinese cabbages , tomatoes , turnip and scallion as plants: The toxicity of heavy metals Cu.

本文选择4类典型土壤（红壤、草甸棕壤、暗棕壤和栗钙土），以（小麦、白菜、萝卜、西红柿、大葱）为供试植物，进行了重金属（Cu、Zn、Pb、Cd）、有机氯、多环芳烃污染的植物种子发芽与根伸长抑制试验；植物早期生长试验研究；以草甸棕壤为供试土壤，进行了重金属（Cu、Zn、Pb、Cd）单一、复合污染条件下的蚯蚓急性毒性实验；以草甸棕壤、污染土壤和生物修复土壤进行蚕豆根尖实验和土壤原生动物实验。

Moser [14] obtained the persistence of hyperbolic invariant tori when 0 6 Rn is a fixed Diophantine toral frequency and the eigenvalues of JM (J being the standard symplectic matrix in R2m) are real and distinct.

为中的标准辛矩阵的特征根为不同的实根时，得到了双曲不变环面的保持性。

Forty-sixe cases of symptomatic dynamic lumbar spinal instability were selected from the Ninth and Second People's Hospital from March 2003 to March 2007. They received dorsal spinal strenosis surgical decompression, titanium JJXA segmental pedicle screw fixation, intervertebral pace brace, intervertebral disc resection, with the sideward and the forward annulus fibrosus retained, endplate cartilage zone curetted, then received intervertebral bone particles graft, and pedicle screw compression. The patients were followed up for more than 15 months. The good and excellent rate was 91.3%.

选择2003-03/2007-03南阳市第九人民医院和南阳市第二人民医院收治的动力性腰椎不稳患者46例，行后正中入路下的椎管减压手术，钛制JJXA椎弓根螺钉置入，并行椎间隙撑开，双侧切除椎间盘保留侧方以及前方的纤维环，刮除终板的软骨层，行椎间颗粒骨植骨，椎弓根螺钉系统加压固定。46例随访时间≥15个月，优良率91.3%。

We adopted many forestry techniques, including scarifying, weeding, draining, fertilizing, digging far-between dyke, choosing and breeding eximious clone. We also took measures of excavating aperture and irragating root, directly watering root, daubing remedy, stubbing died trees and sterilizing soil in the aperture.We carried through integrated preventional measures of chemical prevention and biological prevention, by using 200×CuSO4, 70% mancozeb 800×5% Chlorothalonil 800×, and Suillus grevillei. All of the meaures got favorable results. The preventional effect exceeded 72%. The incidence of disease descended from 15.5% in 1998 to 2.8% in 2002.This kind of disease was controlled on the whole.

自1998年开始，经过5年的系统研究，通过松土除草、排水施肥、挖隔离沟，选育优良无性系等林业技术措施；采用挖穴灌根法、直接浇根法、涂药法、死树挖除并对穴内土壤消毒等方法，使用硫酸铜200倍液、70％代森锰锌800倍液、5％百菌清800倍液和厚环乳牛肝菌进行化学防治和生物防治等综合防治技术，均取得了很好的效果，防治效果达72％以上，发病率由1998年的15.5％，下降到2002年的2.8％，使该病基本得到了控制。

Moreover, MeJA induced defense genes, such as pathogenesis-related proteins (PR2a), phenylalanine ammonia-lyase, BX9, and TPS. MeJA also increased DIMBOA and Vannillic acid content of leaves and roots significantly but leaf p－Hydroxybenzoic acid concentration was decreased significantly and Protocatechuric acid was produced in roots only.

1MeJA叶片处理能诱导叶片和根系中丙二烯氧化物环化酶基因、糖基转移酶（BX9）基因、苯丙氨酸转氨酶基因的表达，使叶片和根系中丁布含量升高，同时，6μL/L MeJA处理使第二叶中原儿茶酸含量显著降低，诱导根中产生原儿茶酸，使第二叶中香草酸含量和根中未知物质峰面积显著增大。

Based on the present histological and previous molecular biological studies, the special structure at the apical end is obviously different from the cervical loop giving rise to Hertwig's epithelial root sheath, in human, mouse and rat molar tooth germs.

作者所作的组织学和分子生物学实验结果表明，人类、大鼠及小鼠磨牙牙胚中这种根尖末端特殊的结构与颈环区Hertwig上皮根鞘结构明显不同。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。