物理化学

I A is more stable than B, and the two equivalent tautomers of 9-HPO can tautomerize through IHT. B is the transition state for IHT of 9-HPO. ii B was in a symmetrical plane. The charge of hydrogen and molecular dipole moment of B are higher than that of A, so the IHT rate will be accelerated in polar solvents.

另一方面IHT也使此类分子表现出某些优异的物理化学特性，比如：具有IHT的羟基艺北醌类化合物可以用作光疗药物，用于治疗肿瘤、爱滋病等顽症，还有望成为光电转换的新材料[2 ] 。

The physical and chemistry simulation on TSA process was established, and the mechanism of thaumasite formation was taken on further discussion.

摘 要：研究水泥砂浆试件在碳硫硅酸钙型硫酸盐侵蚀过程中的物理化学性能变化，对TSA过程进行模拟，进一步探讨碳硫硅酸钙的形成机理。

Potassium titanyl phosphate (KTiOPO_4; KTP) is an excellent crystal for second-harmonic conversion of all-solid-state laser.

中国科学院研究生院，物理化学，2009年，博士

The information that is required is related to physico-chemical properties, mammalian toxicology and environmental effects.

档案信息应包括化学品的物理化学特性，对动物的有害性及对环境的影响。

By using the methods of XRD and physical-chemical analysis ,the results have revealed the changes in components and textures and mechanisms of alkali trachyte at different temperatures when roasting.

应用X衍射、化学分析结果和物理化学分析方法，研究富钾粗面岩在不同温度下焙烧所发生的矿物成分和结构变化及其变化机理。

In this paper, the characteristics of ancient sea water during the formation of the potash deposit was studied, the physical-chemical peculiarities of potassium-forming brines were analyzed by using the phase diagram, the formation mechanism of this mineral deposit was investigated based on the chemical foundation of its formation conditions.

本文研究探讨了该矿床形成时的古海水特点，根据相化学，分析成钾原始卤水的物理化学特性，从矿体形成的化学基础来研究老挝钾镁盐矿床形成的机制。

The application of sulfur isotope tracing involves the physical and chemical conditions, origin of ore-forming minerals, denudating degree of orebody, ore enriching position and genesis types of deposits. In the application, the geology of the hydrothermal deposit should be well understand to distinguish metallogenic epochs and judge the isotopic fractional equilibrium state, combined with the Ohmoto mode to study the factors possibly affecting hydrothermal fluid system.

在总结前人研究基础上，综述了硫同位素在热液成矿作用中成矿物理化学条件、成矿物质来源、矿体剥蚀程度、矿化富集部位、矿床成因类型等的示踪意义，认为硫同位素示踪应用须在了解热液矿床基础地质前提下，准确区分成矿期次，判别硫同位素分馏平衡状态，结合Ohmoto模式综合研究影响成矿热液体系的各种因素才可以赋予同位素准确的地质内涵。

Methods Porous heterogenous deproteinication boneof pig obtained by physiochemical process and osteoblast acquired from the cranical bone of fetal rabbits were cultured 10 days in vitro and explanted into the left side of dorsa muscle of 30 adult rabbits.

将经过物理化学方法处理制得的冻干猪脱蛋白型松质骨与胎兔颅骨来源的成骨细胞体外培养 10d后，在无菌条件下植入 3 0只成年新西兰兔背部肌肉内，对照组为同体单纯植入猪脱蛋白型松质骨。

Endued good physical and chemical properties for final composite products.

可赋予复合材料高的物理化学性能。

Over the eons, chemical and physical changes occurred, fossilizing the resin to produce the Amber we know today.

我们今天见到的琥珀就是长久以来树胶在物理化学作用下慢慢变为化石的一种树胶。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷