查询词典 formation

The isodesmic reactions were designed to calculate standard enthalpy of formation and standard free energy of formation of PBTAs congeners.

设计等键反应，计算了PBTAs系列化合物的标准生成热和标准生成自由能。

Based on the changes in the spectrum characters of guest molecules producedthrough inclusion complex formation with cyclodextrins, we have carried out two aspects of investigation:First, the mechanisms for the host-guest recognition reactions have been studied, such as the interactions between 3-CD and curcumin, the main constituent of the rhizomes of the plant Curcuma longa, the recognition of p-CD towards rubidate, the effective component of the Chinese traditional medicine madder, and the reactions of p-CD towards the antileprotic drug dapsone and the antiinflammatory drug nabumetone: The formation of supramolecular complex between P-CD and guest molecule has been discussed and verified in virtue of multitudinous means such asultraviolet-visible absorption, fluorescence emission, infrared spectrogram and so on. The influence of addition of linear alcohols on the supramolecular system has been studied and the reason why the noncovalent interactions in the three-component system could result in a decrease in the apparent association constant of the inclusion complex has been revealed.

本论文基于环糊精对被包结客体光谱性质的改变，开展了两大方面的研究：β-环糊精对姜黄属植物根茎主要成分—姜黄素、中药茜草有效成分—茜草双酯、抗麻风药物氨苯砜及抗炎药物萘丁美酮的主-客体识别反应机制研究：借助超分子包合物的紫外吸收光谱、荧光光谱或红外吸收光谱等手段，通过多种方法探讨并验证了超分子包合物的形成；研究了直链醇的加入对超分子体系的影响，揭示了三元体系中非共价相互作用导致超分子包合物表观结合常数降低的原因：对超分子包结反应进行了热动力学研究，探讨了各热动力学参数的变化趋势并从熵焓互补的角度考察了超分子包结过程；通过荧光猝灭实验进一步揭示了水相中β-环糊精增敏客体荧光的本质原因，从而为超分子化学提供新的理论和研究方法。

The formation process of pure Cu on bronze archaeology is simulated in laboratory conditions, in which CuCl can be fully deoxidised to pure Cu for extended period of time. The same condition for the formation of pure Cu can also be provided in soil. This outcome forms the theoretical and experimental basis for restoring excavated bronze artefact from harmful patina CuCl.

用金相显微镜、扫描电子显微镜和原子力显微镜研究了纯铜晶粒及腐蚀界面的形貌特征，在实验室条件下模拟了纯铜晶粒在青铜文物表面的析出过程，通过延长还原时间CuCl可全部被还原成纯铜，其生成条件在土壤中也具备，这为除去青铜文物上的有害锈提供了理论和实验依据。

The B-17's performance was spectacular in itself, but Fuddy Duddy went on to provide one of the highlights of the show by flying in formation with Photo Fanny, a formation I haven't seen at any of the other 50 or shows I've attended in the USA.

这架B - 17的表现是壮观的本身，而是Fuddy Duddy继续提供的一大亮点展示飞行编队与图片椒芬，编队我还没有看到任何其他50或表明我出席在美国。

The B-17's performance was spectacular in itself, but Fuddy Duddy went on to provide one of the highlights of the show by flying in formation with Photo Fanny, a formation I haven't seen at any of the other 50 or shows I've attended in the USA.

B-17本身的表演已经很震撼了，但是那架名为&Fuddy Duddy &的B-17还和可爱的B-25&Photo Fanny&做了编队飞行，这样的编队在我参加的美国航展上从未出现过。

Which are consistent to the source rocks relating to evaporite depositional environment within the lower part of Xingouzui Formation and the upper part of Shashi Formation in the study area.

对江汉盆地西南缘12个原油样品中含硫化合物分布特征的研究表明，原油中二苯并噻吩系列化合物和苯并萘并噻吩系列化合物分别占芳烃总量的4.61%~9.79%和0.27%~1.32%，与烃源岩中含硫化合物的含量一致，反映原油中含硫化合物的含量与沉积环境有关。

The effect of carbon dioxide's multiple extraction s on wax precipitation temperature in formation oil was studied under the condition of carbon dioxide miscible flooding in Fan124 fault formation oil of Shengli Daluhu Lake Oilfield through SDS solid precipitation measurement system.

利用SDS固相沉淀测试系统，针对胜利大芦湖油田樊124断块地层原油特性，研究了CO2混相驱条件下，CO2的多次抽提对地层油组分和析蜡温度的影响。

In the Lower-Middle Jurassic low-pressure reservoir, lots of feldspars were dissolved, the content of kaolinite is from 3% to 16%, and the average value is 9.6%. During the formation of kaolinite, the formation water was abundantly consumed, and fluid content in pores decreased.

应用岩心、薄片、扫描电镜、储层物性和黏土矿物X衍射等资料，研究了三塘湖盆地侏罗系储集层的岩石学特征，发现中下侏罗统低压油藏中长石大量被溶蚀，高岭石非常发育，占全岩的3%～16%，平均为9.6%。

Cr is a ferritic form elements in stainless steel, so the chromium the formation of crystal structure and austenitic formation is a competition between elements.

铬是一种铁素体形成元素，所以铬在不锈钢晶体结构的形成上和奥氏体形成元素之间是一种竞争关系。

In addition, the important forms used to calculate the formation parameter s, such as shale volume, water saturation and permeability, are improved to be more suitable for the calculation of inhomogeneous formation parameter s according to the power law of fract.

同时，利用分形理论的幂定律，对泥质含量、含水饱和度和渗透率等参数的计算公式作了改进，可以更好地适应非均质地层参数的计算。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。