机理

First of all,the content of alkali of raw materials of concrete must be high.

并对混凝土工程发生碱-集料反应的内在本质和作用机理进行了分析。

The mechanism,thermodynamics and kinetics of ion-exchange reactions between alkali,alkaline-earth and transition metal ions and zirconium phosphate and its derivatives ar...

本文综述了碱金属、碱土金属、过渡金属离子等与磷酸锆及其衍生物的离子交换反应机理、热力学和动力学特性，另外也讨论了发光金属配合物与磷酸锆的离子交换反应研究进展。

The mechanism, thermodynamics and kinetics of ion-exchange reactions between alkali, alkaline-earth and transition metal ions and zirconium phosphate and its derivatives are reviewed, progress in ion-exchange reaction between luminescent metal complex and zirconium phosphate is also discussed.

本文综述了碱金属、碱土金属、过渡金属离子等与磷酸锆及其衍生物的离子交换反应机理、热力学和动力学特性，另外也讨论了发光金属配合物与磷酸锆的离子交换反应研究进展。

The effects of temperature and alkalinity on the reaction were studied.

根据反应现象和产物的相结构，研究温度、pH值调节剂种类和pH值对镍纳米粒子形成的影响，并推断其形成机理。

The processes are first put forward that chloro alkane take partin reaction through free radical intermediates.

通过上述研究的实验结果，首次提出了〓／膦体系在上述溶剂中的自由基反应机理。

It can turn the alkane into the alcohol and the alkene into the derivative of ethylene oxide in air at room temperature by its catalysis.

该项研究不仅有助于人们了解细胞色素P-450的催化机理，而且在有机合成和医学上将具有广泛的应用前景。

The alkene chain and H2Se were detected respectively by a series of experiments to support the new mechanism.

通过一系列实验，我们分别检测了烯烃和硒化氢气体，证实了我们所提出的生成机理。

The charge-remote fragmentation of protonated alkylamines and the fragmentation of alkylamine ions can be explaned by using the radical mechanism and hydrogen abstraction of intramolecule, respectively.

自由基机理可以解释质子化脂肪胺分子的远电荷反应。分子内氢抽取可以解释脂肪胺分子离子的碎裂反应。

The possible mechanism for this direct alkylation has preliminary studied as well.

并对反应的机理进行了初步研究。

The reaction mechanisms of the dehydration and alkylation are discussed.

讨论了脱水反应和烷基化反应的机理。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。