运用XPS分析方法研究一系列复合氧化物催化剂中毒前后硫在其表面的各种形态及催化剂活性组分中毒前后的组成、价态、化学机理及其变化。
By using XPS, before and after the intoxication of mixed oxide catalysts, the various appearance and the composition. valence and chemical mechanism of the active component of catalysts were studied.
昆虫对寄主植物的识别是由于识别了植物气味的由一定组分、按照严格比例组成的化学指纹图。
Host recognition of insect is the result of perception of the chemical spectrum which constructed from definite chemical components and ratios.
本文在前文的分子模型基础上，提出了似化学局部组成的基团模型，可用于极性分子混合物申组分活度系数的预测。
Based onthe molecular QCLC model, a group contribution quasi-chemical local composition model is proposed, in which polar molecule is divided into several non-polar functional groups.
注气将改变原有油藏体系的组分、组成等热力学条件，使原油的一系列物理、化学性质发生改变。
Gas injection will change physical and chemical properties of a system caused by thermodynamic condition variation in the process of gas injection.
以马蹄粉厂产粉废浆为原料，提取、分离、纯化了一种功能组分，并对其进行组成成分、化学结构分析以及功能活性测定。
In this paper the waste slurry produced in the production of water chestnut starch was used as raw material to extract, separate and purify a kind of functional compound.
研究了漂白麦草浆（BWSP） 及各筛分组分的物理和化学组成，并就各筛分组分AKD施胶特性进行了比较。
The physical and chemical components of bleached wheat straw pulp (BWSP)and its fractions, also the sizing responses of different fractions were investigated.
研究了漂白麦草浆（BWSP） 及各筛分组分的物理和化学组成，并就各筛分组分AKD施胶特性进行了比较。
The physical and chemical components of bleached wheat straw pulp (BWSP)and its fractions, also the sizing responses of different fractions were investigated.
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