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In recent years, the financial market had a quick development and the stock, bond and other derivative financial instruments were unceased weeding through the old to bring forth the new, the investors had many opportunities to choose among those portfolios.

近年来金融市场的活络及股票、债券及其他衍生性金融商品不断的推陈出新，投资者有更多投资商品可供选择，却也存在著因股价、利率、汇率等价格波动形成的风险。

The formation of π-delocalized bond was seen through the frontier molecular orbital of pentacene.

对前线分子轨道最高占据轨道和最低空轨道分析得到，C-C原子之间形成离域π键。

Under the Non-Ricardian policy regime, the government pegs to the current value of the future surplus, externalizing tax and expenditure, if the government deficit is financed by issuing bond, and then government budget can be cleared through the fluctuation of the market price.

在非李嘉图的政策规则下，政府通过钉住未来剩余的现值，将政府的收入和支出外生化，政府的赤字用发行的债券来融资，然后通过让市场价格水平的波动来调整政府的预算平衡。

Only through forgiveness and compassion inhering in the family bond can they achieve some degree of family reconciliation.

只有家庭纽带中的宽容和亲情能给这四个深陷泥潭的灵魂带来些许安慰。

Methods: The teeth of 4 cases were treated by filling the perforations with the 3M ESPE Single Bond Adhesive and the 3M ESPE F200 Compomer through the pulp cavities,the root canals were obturated well and follow-up surveys were conducted for 3 months.

对4例医源性髓腔穿孔的患牙用3M SingleBond粘接剂和3M F200光固化复合体经髓腔充填修复穿孔，进行完善的根管充填后3个月随访观察。

Objective To improve metal-porcelain interfacial bond strength through treating the metal bottom with wiping crystal off and roughening it.

目的：通过用失晶粗化的方法对金属底层进行处理，以提高金属烤瓷的结合强度。

Moreover, both FTIR and GPC were used to characterize the hairy homopolymers, which were scissored from the shell surface through hydrolysis of the ester group of photo-initiator. In FTIR spectrogram of scissored PVP or PNIPA, characteristic peak of C=S double bond were discovered.

同时，通过水解后从微球表面&剪裁&下来的壳层高分子红外分析表明，高分子链段中均含有碳硫基团，即证明有RAFT试剂的&碎片&存在。

Then polymer latexes coated the silica particles through carboxyl chemical bond adsorption;When the compound temperature(25℃) was lower than Tg(45℃) of polymer,latexes remained their basic shape,and silica nanoparticles adhered to the surface of latex particles.

目前国内外制备复合纳米SiO2微球的主要方法是通过硅烷偶联剂对SiO2进行预处理，使其接枝在粒子表面，然后通过乳液聚合[5，6]、溶胶凝胶法

Through taken the measurements of pH, TOC, UV-Vis spectra and high-performance liquid chromatograph in the degrading process of solution ,it was found that the COD of dye solution increased, pH continuing declined and TOC reduced gradually. The UV-Vis spectra and high-performance shown that though dye molecules had been destroyed, Strong Chromophore Azo Double Bond of dye was certainly under attack, the big conjugated system was vandalized and dye molecules were decolorized degradation, but they were not completely changed into carbon dioxide and other inorganic matter by mineralization, it appeared accumulation of aromatic ring and double benzene nucleus, so it is thus evident that complete destruction of aromatic ring is more difficult than the double benzene.

通过测定直接大红染料脱色过程中的溶液pH、TOC、紫外可见光谱图和高效液相色谱图可知，在脱色处理时间(6h)范围内，染料溶液的COD值增大， pH值持续下降，TOC值逐渐降低，结合紫外可见光谱图和高效液相色谱图，说明染料分子虽然已经遭到破坏，染料分子内强生色基团偶氮双键确实遭到攻击，大的共轭体系被破坏，染料分子被脱色，却没有完全被彻底矿化成二氧化碳等无机物，出现了芳环和萘环结构的累积现象，可见完全破坏芳环比破坏偶氮双键发色团更困难。

The test results indicate that T2 Cu/2A50 Al alloy must first be done by blacksmith welding, and then heated between 515℃ and 525℃ for 180 min, the sample pressure is offered by heating and insulation in the process through special fixture, the joints of T2Cu/2A50Al alloy with metallurgy bond can be obtained, and there is obvious welding seam in the interface.

试验结果表明，T2铜／2A50铝合金，采用先锻接，后加热到515~525℃之间，保温180 min，并在加热和保温过程中通过特殊的夹具提供给试样压力，能得到冶金结合的T2铜／2A50铝合金接头，接头界面处出现了明显的焊缝。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。