查询词典 rubber bond

The nautre of ester bond and sedimentary medium condition control the distribution pattern of organic acid ester in strong reductional environment and water-washed oxidized crude oils. The former features higher contents both of 9, 11-Octadecadienoic acid, methyl ester and Hexadecanoic acid, showing the non-reversible hydrolysis reaction of ester bond in condition of basicity; the later features higher contents of Hexadecanoic acid and Octadeanoic acid, and lower contents of nonsaturated and side-chain acid ester, indicating the reversible hydrolysis reaction of ester bond in acid condition.

酯键的化学性质和沉积环境中介质条件，决定了强还原咸水盐湖相和淡水湖沼相经水洗氧化次生变化的原油有机酸酯的分布特征，前者9，11-十八二烯酸甲酯与正十六烷酸为主，反映酯键在碱性条件的不可逆水解过程，后者以正十六烷酸和正十八烷酸为主，烯酸和支链酸很少，反映酯键的酸性条件的可逆性水解，烯酸经氧化向正十八烷酸，正十六烷酸转化。

This research used option-based structural model: Merton Model and the Implied Volatility Model which visualized an option on the firm's equity that expired before the debt mature was a compound option and was proposed by Hull, Nelken and White in 2004. Then compare the fitting and ranking ability in the model implied credit spread of the two structural model to the observed bond credit spread between corporate bond yield and bond yield in Taiwan's listed companies.

本研究运用选择权基础的信用风险模型：Merton(1974)模型与Hull， Nelken and White(2004)提出将个股选择权视为复合选择权的Implied Volatility模型，比较这两个结构式信用风险模型所计算出的隐含信用利差对台湾上市、柜公司之公司债殖利率与公债殖利率间实际的信用利差之配适能力与排序能力。

Halogenated aromatic compounds with great q〓(the most negative net atomic charges on an atom of the molecule), ENC (electron-nuclear attraction energy of the one-center term for the carbon atoms of the weakest carbon-halogen bond), qc (thenet atomic charges on the carbon atom of the weakest carbon-halogen bond) and E〓 tend to be reductively dehalogenated slow, while halogenated aromatic compounds with high values of △E (the difference of front-line orbital energy), EEC (electron-electron repulsion energy of the one-center term for the carbon atoms of the weakest carbon-halogen bond), Mw, q〓 and α tend to be reductively dehalogenated fast.

卤代芳烃化合物的整个分子的最负的原子净电荷，键序最小的碳卤键中碳原子的单中心项电子-核吸引能，该碳-卤键上碳原子的净电荷和E〓与该卤代芳烃化合物还原脱卤的速率常数负相关；而前线轨道间隙能，键序最小的碳卤键中碳原子的单中心项电子-电子推斥能，Mw，q〓和α与该卤代芳烃化合物还原脱卤的速率常数正相关。

A C-C bond type radical initiator i.e. 1,1,2,2-tetraphenyl-1,2-ethanediol and a S-S bond type thermal iniferter, i.e., tetraethyl thiuram disulfide were used to consist of new reverse ATRP initiation systems TPED/FeCl3/PPh3 and TD/FeCl3/PPh3, respectively."Living"/controlled polymerizations of a polar monomer MMA and a non-polar monomer St were investigated with the initiation systems as well as other new initiation systems; behavior of vinyl polymerization with a new asymmetrical C-C bond type thermal monomeric iniferter was studied also.

前者选用C-C键型的自由基聚合引发剂1，1，2，2-四苯基-1，2-乙二醇、S-S键型的热iniferter二硫化四乙基秋兰姆组成新引发体系TPED/FeCl3/PPh3、TD/FeCl3/PPh3，研究这些引发体系引发MMA、 St聚合的&活性&/控制聚合行为，同时研究一些其他新引发体系；后者合成了一种新的非对称C-C键型热引发转移终止剂，并研究其自由基聚合规律。

Methods:The porcelain specimens etched for 0 to 210 s and then bonded with composite resin. After storage in 37 ℃ water for 24 h the shear bond strength was measured.Results:Unetched porcelain did not bond to composite resin. Different etching time resulted in diferent bond strength.

他们之所以能够成功的被应用于临床上，与目前在瓷与树脂粘结方面所取得的成功是分不开的，瓷与树脂产生的牢固结合力是获得成功的必由之路。

The desorption liquor can be used as neutralization reagent of the former coagulation precipitation process. 3The precipitate of ferrite coagulation is analyzed by XRD, EDX and FTIR. The results show that the precipitate is a noncrystal which contains As-O bond, O-As-O bond, Fe-O-Fe bond, SO_4~(2-)and -OH.

3铁盐沉砷过程中产生的沉淀物经过XRD、EDX、FTIR分析，得知为一种非晶态的化合物，化合物中含有As-O键、O-As-O键、Fe-O-Fe键、SO_4~(2-)、-OH基团，该沉淀物经过国家标准毒性浸出试验证实是一种安全无污染的固体物质。

However, it is worth reminding that the current need to pay attention to the risk of short-term if the first is the sharp rebound in the stock market may siphon off some of the funds to bond funds brought pressure stage; Second, some of the economic downturn decline in corporate profits could lead to corporate bond credit spread expansion of corporate bonds so as to bring about structural adjustment bond.

不过，值得一提的是，目前需要注意短期风险，如果第一个是在股市大幅反弹，可能会抽走部分资金，以债券型基金带来的压力阶段，其次，公司利润下降的经济衰退可能导致一些公司的债券信用企业债券的蔓延扩展，以实现结构调整的债券。

Although there are several types of bonds, a performance bond, bid bond, and payment bond are the most common.

保证金有好几种形式，其中以绩效保证金，投标保证金和付款保证金最为通用。

After heat treatment at 1100C in air, the elements of the substrate and the bond coat diffuse and the diffusion of Ni is an uphill diffusion. The layer of r " phase and the layer of A12O3 or NiAl2O4 were formed at the interface of the substrate and the bond coat and at the interface of the bond/top coat, respectively. The thickness of the r " phase and the oxide layer increases with the increase of the time of the heat treatment.

经1100℃热处理，基体和底层中元素发生了相互扩散，并在界面析出γ'相，γ'的存在使界面的结合为冶金结合；在底层／面层界面由于底层被氧化和Al与ZrO_2氧化还原反应形成Al_2O_3等氧化物，Y'和氧化物的厚度随热处理时间延长而增加。

In the Chapter 4, finance bond is studied, With the comparison to the other bonds, the development course of finance bond market in our country has been briefly reviewed, the issuer and the issuing method have been concretely analyzed, and the perspective of the finance bond market in our country has been put forward.

本文从金融结构、金融体系发展变化的历史角度出发，在研究内容上比较全面、系统地分析了中国债券市场发展现状、发展中存在的问题、面临的挑战、创新的方向以及发展的目标模式，在研究的理论基础上注重运用新的理论，在研究方法上注意采用多种研究方法，在资料整理上特别是关于企业债券和金融债券方面的内容较完整、全面。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。