初步探索

By imitating different concentration of Cd2+ Cu2+ Cr3+ Cr6+and Zn2+polluted water environment,we mainly studied their toxic effects on aquatic piants by means of measurement of physiologicai indexes and electron microscopy observation as well as the relieving to Cu2+ injury of antioxidase enzyme system in Lemna minor L. and Vallisneria asiatica Miki in this paper by throwing Ce.the experimental results showed that Cd2+ Cu2+ Cr3+ Cr6+ and Zn2+ might injure photosynthetic systems, protective enzyme system, substance metabolism systems and cell ultrastructure of the plant.

本文通过模拟不同浓度梯度的重金属Cd~(2+)、Cu~(2+)、Cr~(3+)、Cr~(6+)和Zn~(2+)污染环境，利用生理生化测定、扫描电镜、透射电镜、气相色谱及激光共聚焦等实验手段，研究了四种金属离子对不同生态型的水生植物的毒害影响，初步探索了Ce对浮萍Cu害的缓解效应和La、Zn及其交互作用对浮萍活性氧清除系统影响。

Preliminary Tests for Chemical Components of Leucaena leucocephalaLam.

目的采用系统预试法对银合欢种子可能的化学成分进行预实验，初步探索银合欢种子的化学成分。

Guangxi Traditional Chinese Medical University ,Nanning 530001,ChinaAbstract:ObjectiveTo identify the chemical components of Leucaena leucocephala de Wit seeds using comprehensive preliminary tests.

目的采用系统预试法对银合欢种子可能的化学成分进行预实验，初步探索银合欢种子的化学成分。

In this paper the performance and mechanism of AE superplasticizer GCL1-D,which is developed by modification of lignosulphonate,is studied.

试验研究了木质素系高性能引气减水剂GCL1-D对砂浆及混凝土应用性能的影响，并初步探索其作用机理。

Objective To study partial biochemical characterization and effect of lumbricus dornases.

：目的研究地龙体内两种新型脱氧核糖核酸酶的部分生化性质，并对其作用进行初步探索。

Distribution and isolation of cellulolytic myxobacteriaWe assayed distribution of and isolated cellulolytic myxobacteria of several environmental types of samples, i.e.

为了更深入地研究和开发溶纤维素粘细菌资源，本文在溶纤维素群粘细菌的分离纯化、生态分布、系统分子分类、降解纤维素机制进行了初步探索。

Objective In order to investingate the effect of calcitonin plus calcium,VitD3to treat the osteoˉporosis.

目的 对降钙素与钙剂、维生素D 3 联合治疗骨质疏松症进行初步探索。

Findings of character of the investigation of Zhu Bai resource that carries pair of Fujian Province, main economy is analysed, according to Zhu Bai grow, progenitive characteristic, the development foreground that plants as tree of the sources of energy to Zhu Bai, way undertook preliminary discuss.

通过对福建省的竹柏资源调查、主要经济性状调查结果分析，根据竹柏的生长、繁殖特征，对竹柏作为能源树种的发展前景、途径进行了初步探索。

In this dissertation, a series of novel multi- ferrocenyl pyridinium salts, with pyridinium cation as electron acceptor and ferrocenyl as electron donor, were designed and synthesized for generating materials possessing interesting optical and electrochemical properties.

本论文的研究目的是设计、合成系列多二茂铁基取代吡啶盐新化合物，并初步探索其光电性能。

Other applications of the sol-gel technology on textile were discussed in this paper as well, such as ultra-violet cutting, water repellency, weighting of silk and knitting fabrics, fixing the β-cyxlodextin on cotton for"Host-Guest"effect etc.

本论文对溶胶-凝胶技术在纺织上的其它应用进行了初步探索，如抗紫外、拒水、真丝绸和针织物的增重、β-环糊精在织物上的固着、香精的缓释等。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。