sediment

Impact on the Daning river sedimental environment by Three Gorge Reservoir in view of changes in sediment compositions;

从沉积(物)组成变化看三峡水库蓄水对大宁河沉积环境的影响

Seasonal changes of P adsorption/desorption characteristics at the water-sediment interface in Meiliang Bay,Taihu Lake,China;

太湖梅梁湾沉积(物)中磷吸附/解吸平衡特征的季节性变化

Spatial difference mechanism of sludge sediment grain size in tidal wetlands of Yangtze delta;

长江口潮间带淤泥质沉积(物)粒径空间分异机制

Correlation analysis and risk assessment of organochlorine pesticides in surface sediments from the Yellow River;

黄河表层沉积(物)中有机氯农药的相关性分析与风险评价

Contamination Estimate of Heavy Metals in Sediments of Suburb Wetland in Daqing;

大庆城郊湿地沉积(物)重金属污染评价

Enrichment of heavy metals in the surface sediments from the three regions of random dumping in South China Sea and assessment of their potential ecological risk;

南海重点海洋倾倒区表层沉积(物)富集特征及其潜在生态风险评价

Organic pollutants in surface sediment of Donghu Lake, Wuhan;

武汉东湖表层沉积(物)有机物污染状况

Assessment on heavy metals in seawater, surface sediments and organisms at Guangxi inshore;

广西近岸海域海水和沉积(物)及生物体中的重金属

The results show that concentrations of total OCPs in the upper surface sediment is obviously higher than those in the lower sediment.

用GC/ECD法测定了小海地区上下层沉积(物)中17种有机氯农药的浓度水平和分布特征。

The effect of biosidal treatment of initial sediment,addition of inhibitor and addition of phosphorus on the transform of nitrogen and phosphorus in the sediment-water simulative system were studied.

研究了灭菌、抑制剂添加和磷添加对沉积(物)-水模拟系统中氮磷转化的影响,并利用试验后的上覆水培养四尾栅藻。

Characterization of the deposits on deactivated TS-1 catalyst in cyclohexanone ammoximation process;

环己酮氨肟化反应中失活TS-1催化剂上沉积(物)的物化表征

Formation of Deposits in Spark Ignition Engine and Their Effects;

点火式发动机中沉积(物)的形成及其影响

Theoretical and Experimental Study on Unburned Hydrocarbon Emissions from Combustion Chamber Deposits in Spark Ignition Engines;

火花点火发动机燃烧室沉积(物)未燃碳氢排放的理论与实验研究

Study on Deposit Simulating Method by Fourier Transform Infrared Technique in Gasoline Engine;

汽油机沉积(物)光谱技术仿真分析方法研究

Effect of Combustion Chamber Deposits on Hydrocarbon Emisions in a Spark Ignition Engine;

燃烧室沉积(物)对火花点火发动机碳氢排放的影响

Variations of thermal-oxidation deposit and light absorbance of the oxidized fuels versus oxidation time or temperature were measured respectively.

测定热氧化沉积(物)的量和氧化燃料吸光度值随时间及温度的变化。

The content of insoluble carbonaceous deposit and the C/H mole ratio on the catalyst surface increased with the time on stream.

随着反应时间的延长 ,催化剂表面碳沉积(物)的含量逐渐增多 ,不饱和度逐渐增大 ;χ Fe5C2 的含量逐渐增多 ,Fe3 O4的含量逐渐减少并趋于稳定 。

The pattern of hypo-stable heavy mineral zone, hypo-stable heavy mineral +stable mineral zone and stable mineral zone are distributed from north-east to south-west, quartz cathode luminescence characteristics indicate that the source mother rock is a middle-low class metamorphic rock, which shows that the sedimentary sources of the Reservoir Group Chang 6 in the studied are.

石英阴极发光特征表明物源母岩为中低级变质岩系 ,说明研究区长6油层组沉积(物)源主要来自北东部吕梁山区和大青山区。

In the sedimentary source obvious tectonic movements and changes occurred during 4.

8 Ma 3次构造热事件;沉积(物)源区在42。

Through analyses of heavy minerals and rock compositions, it is first found that the sedimentary source in the area comes from 2 directions, one is Mobai area in east-north direction, the other is Xiaoguai direction.

通过对该区重矿物分析、岩石组分等的分析,首次发现该区沉积(物)源来自两个方向,一个是北东方向的莫北地区,另一个是西北的小拐方向。

Some experiments were conducted in a flow loop to simulate the effects of a diesel stream on the wax deposits on the pipe wall during batch transport of waxy crude and refined petroleum products in a pipeline.

针对含蜡原油成品油在顺序输送中管壁上会产生蜡沉积(物)的问题 ,利用管流实验环道模拟了 0号柴油对管壁处蜡沉积(物)的冲刷实验。