The test result showed that NT has superior alkali resistant and penetrating properties and it is al ˉ so biodegradable.

Research on Treatment of Nonbiodegradable and Toxic Organic Substances in Coking Wastewater with UV+ F_e~ ( 2+)+ H_2O_2

UV+F e~（2+）+H2O2处理焦化废水中难生物降解的有机毒物的研究

Hopanes are slightly more resistant to biodegradation and their concentrations increase at early stages of biodegradation ( PM level 1-3).

藿烷具较强的抗生物降解能力，在生物降解的早期阶段其浓度增加（PM级1-3），到严重降解时其含量才降低。

By adding starch photo sensibilizer and biodegradation promote agent, photo degradable and bio degradable PS snack containers were prepared.

采用添加淀粉、光敏剂及生物降解促进剂的方法，制得光-生物双降解PS餐盒。

Biodegradability for PLA/ PHBHHx blends was investigated in detail by soil suspension cultivation and scanning electron microscopy ( SEM).

通过土壤悬浊培养降解法和扫描电子显微镜（SEM）分析对共混材料的生物降解性能进行了研究。

GC-MS Analysis Method for Biodegraded Mixed Oils

生物降解混源油GC-MS研究方法

A Biodegradable Fiber-Polylactide Fiber Part II Performance Features and its Applications

可生物降解纤维聚乳酸（PLA）纤维第Ⅱ报.性能特征及其应用前景

The Effects of Organic Matter and Hydrous Metal Oxides on the Anaerobic Degradation of γ-666, p, p ′-DDT in Liaohe River Sediments

沉积物中有机质及金属水合氧化物对γ-666、p，p′-DDT缺氧生物降解性影响

Application of SND Technology to Reconstruction of Adsorption-Biodegradation ( AB) Process

吸附-生物降解（AB）工艺的改造

Synthesis and NMR Studies of Starch-Based Biodegradable Water-Borne Polyurethane

淀粉基可生物降解水性聚氨酯的合成及其NMR研究

The formula design and evaluation of photo-biodegradable PE plastics

光-生物降解PE塑料配方设计和评价研究

PCL appears to degrade better than starch filled PE.

聚己内酯降解塑料要比淀粉填充的PE部分降解塑料的生物降解性好；

Study on Biodegradability of Polyurethanes Based on Copolymer of CO_2

CO2共聚物为墓聚氨酯生物降解性能的研究

Biodegradable heparin/ ampholytic chitosan complexes for pH-sensitive release of proteins

可生物降解肝素钠/两性壳聚糖复合物用于蛋白药物pH响应释放研究

And the known sinks include photochemical decomposition in the atmosphere, loss to soils and uptake by green plants, chemical and biological degradation in the ocean.

CH3Br的汇包括：光化学分解、被土壤和植物吸收、在海洋中的化学和生物降解等。

The two SBR reactors' biological degradation ability variety in the process was studied by monitoring the COD, TN, and TP of the effluent. The difference of the two kinds of aerobic granular sludge formation process is also studied.

在培养过程中通过监测出水COD、TN、TP，分析了两反应器内污泥颗粒化过程中的生物降解能力的变化情况，并研究了不同接种污泥形成好氧颗粒污泥的过程差异。

The photosynthetic characteristic and its effects on growth of winter wheat in winter were studied by using 14 C tracer.

利用14C同位素示踪技术研究了冬小麦越冬期间的光合特性及其对冬小麦生长发育的影响。

Major results are reported as follows: ( 1) Decomposition and residual characteristics of 14C-MSM in 3 different soils were systematically studied under controlled conditions.

主要研究结果如下：（1）运用14C同位素示踪技术，系统研究了控制条件下14C-甲磺隆在Pb污染的3种不同性质土壤中的降解和残留特性。

Preparation of ￣( 113m) In Radiotracer Using for Radioisotope Tracing Flowmeter

同位素示踪流量计用~（113m）In放射源载体的研制

The behavior of the rare-earth dissolved in steel, of the iron-cerium intermetallic compounds and of the rare-earth inclusions in electrolytic separation process was studied by means of radiolabelling method, electron probe and X-ray analysis.

用放射性同位素示踪法、电子探针和X射线分析研究了溶解在钢中的稀土、铈-铁金属间化合物和稀土夹杂物在电解分离过程中的行为。

Isotope tracing study was also adopted for observing the effects of 1,25 ( OH) 2D 3 on calcium uptake into extracellular matrix.

同位素示踪方法观察1,25（OH）2D3对胞外基质45Ca2+的影响。