化学过程

Soils under Phyllostachys praecox stands with different cultivation histories are selected to study their content changes in chemical proprties and heavy metal elements.

为了解集约化经营雷竹栽培过程中土壤化学、生物化学性质和重金属含量的变化，分析了不同栽培历史的雷竹林土壤。

In order to solve the important and basic problem of the petrogenesis of "Tiantangzhai migmatitic granite" in the core of Dabie orogenic belt, the detailed 1∶50000 regional geological surveying and the big scale dissection of important region (metamorphic rocks, granites and structure), were operated in about 900km〓 area near Tiantangzhai peak. On the bases of the petrology, mineral chemistry, geochemistry of rare earth element and microelement, isotope geochemistry and chronology, physicochemistry, magmatic dynamics, geodynamics, diagenetic simulation, and regional geophysical data, the theory of cooling age and historical geochemistry and the viewpoint of tectonic evolution are applied to study the petrogenesis of Yanshan epoch granites of this region. On the bases of above studies, the process of tectonomagmatic dynamics after indo-Chinese epoch in Dabie orogenic belt is discussed. The important conclusions are gotten

本文针对大别造山带核部&天堂寨混合花岗岩&成因这一重大基础地质问题，在天堂寨一带近900km〓的面积上进行了详细的1∶5万区域地质调查和大比例尺重点区解剖，通过对区内燕山期花岗岩进行岩石学、矿物化学、稀土微量元素地球化学、同位素地球化学和年代学、物理化学、岩浆动力学、地球动力学和成岩计算机模拟等研究的基础上，结合区域地球物理学资料，应用冷却年龄、历史地球化学理论和构造演化观，阐明区内燕山期花岗岩成因，并以此为基础进一步讨论了大别造山带自印支期以来的构造—岩浆动力学过程，取得了如下的重要认识

The development of male gametophate in Polygonatum simizui and Pdargonium hortorum was studied using the electron...

应用电子显微镜以及光镜和电镜水平细胞化学的技术对玉竹，天竺葵雄配子体发育过程进行了系统研究。

The FTIR of lignin-based polyhydric alcohol shows new characteristic peak of carbonyl is formed and the characteristic peak of aromatic ring and polyether at 1600cm-1 and 1110cm-1 respectively, which induce there is linkage of chemical bond.

所得木质素多元醇通过红外光谱图表明在1750cm-1附近有新的酯羰基生成，并且在1600cm-1含有木质素的芳香环和1110cm-1的聚醚链，表明木质素磺酸钙与聚醚多元醇在互溶过程中有化学键的接合。

X-ray diffraction,transmission electron microscopy, BET surface area measurement and thermal analysishave been used to determine the characteristics of the nanopowdered silver prepared by chemical reduction with the polymolecular protectant.

用X -射线衍射、透射电镜、比表面测定和热分析技术，对从高分子保护化学还原法制得的纳米Ag粉，做了相关的测定表征；从表观比热的测定结果探讨这一亚稳微晶体系在加热过程和热处理后所发生的各种变化。

The applications of mechanochemical effects of polymer solids during pulverization in self-compatibilization of immiscible polymer blends, effective mixing of polymers with unmatched viscosities, self-plasticization of polymeric resins, property tailoring between polymer components as well as the recovery of single and commingled postconsumer or preconsumer polymeric wastes were reviewed.

综述了聚合物固体粉碎过程中产生的力化学效应在不相容聚合物混合物增容、高分子树脂的自增塑、粘度不匹配聚合物体系的有效混合、高分子废弃物循环回收利用等方面的应用。

We studyed on breaking dormant and screening preferent chemical herbicides of Codonposis Lanceolata Bentn.et Hook.f. in order to solve the low rate of germination and difficulty of weed control during the cultivation of Codonposis Lanceolata Bentn.et Hook.f..

为解决轮叶党参栽培过程中种子出苗率低及除草难的问题，对轮叶党参休眠的打破及适宜化学除草剂的筛选进行了探讨。

The catalysing technology is preferentially considered as a research field in this century .

催化过程，包括各种形式的化学催化和生物催化，是实现高原子经济反应的重要途径。

This experiment aimed to systematically investigate and analyze the ethanol activated rates of mouse oocytes, affected factors of oocytes activation, types and development of parthenotes, and the organization and roles of the cytoskeleton during pronuclear formation and migration and early embryo cleavage by ethanol activation of oocytes, embryo culture in vitro and immunofluorescence cyto-chemistry. The results:(1) The ethanol activation of mouse oocytes showed that the activated and developmental rates of oocytes increased significantly with the increase of ethanol concentration and extension of exposure time, but over concentration and exposure time would result in increased fragment rates significantly. 7% ethanol treated oocytes for 7min was the optimum activated condition.

本实验主要利用卵母细胞的乙醇激活、胚胎体外培养和免疫荧光细胞化学方法对小鼠卵母细胞乙醇激活效率、影响因素、孤雌胚类型、发育、原核形成、迁移及早期胚胎卵裂过程中细胞骨架的组装、作用等进行了系统的研究和分析，结果显示：(1)小鼠卵母细胞的乙醇激活结果表明，随着乙醇浓度的升高和作用时间的延长，卵母细胞激活率和发育率都显著提高，但乙醇浓度过高和作用时间过长会导致卵母细胞碎裂率的显著增加，7%乙醇作用卵母细胞7min 为最佳激活条件。

The chemical activity of PbO and Nb〓O〓 is much higher than that of MgO. It results in that pyrochlore phases are easily formed. Performances of 〓 solid solution are damaged when pyrochlore phases exist.

由于MgO的化学活性低，而PbO和Nb〓O〓的反应活性大大高于MgO，因此在一次性合成PMNT材料过程中会形成烧录石相，得不到纯钙钛矿相，并且将导致材料性能下降。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。