查询词典 sediment

The strata distribution of every stage indicated the controlling effect of faults on the sediment.

各个时期的地层展布特征体现了断裂发育对沉积的控制作用。

After mud-sediment changed into stone,the water flowing in pores of middle layer of mudstone has to overcome the starting resistance resulted from the water film forming in pores.Water is easily preserved in the pores and forms the undercompaction of the mudstone layer.

当泥质沉积物成岩以后，地层中部的孔隙水必须克服微孔隙对其产生的启动阻力才能向外排出；否则，地层水就被滞流在岩层孔隙中并造成泥岩的欠压实。

Methods: The marine bacteria were isolated with the infinite dilution and plate streak technique and screened for antimitosis active strains by Pyricularia Oryzae model. The active strain 32-11-2-2 was subjected to morphological, physiological and biochemical study, and was classified by the analysis of the 16S rDNA sequence. Results A total of 421 strains of marine bacteria were isolated from marine water and sediment samples; 54 of them had antimitotic activity.

采用无限稀释和平板划线法分离微生物样品，利用稻瘟霉模型进行活性筛选；并对其中的活性菌株32-11-2-2的形态、培养特征以及生理生化特征进行研究，使用16S rDNA序列分析的方法对菌株32-11-2-2进行了分类鉴定。

As the lake basin shoals and silts up, the color of clastic sediment gradually changes from black, black gray, gray and grayish green to purplish grey and red purple, meaning that the subaerial alluvial fan deposit of late stage has replaced the fan-delta deposit and that the coal-forming process ends.

待湖盆逐渐变浅和淤积，碎屑沉积物的颜色由黑、黑灰、灰、灰绿逐渐变为紫灰和紫红，表明晚期陆上冲积扇沉积已经代替了扇三角洲沉积，成煤作用随之结束。

Changes in community structure over time are apparent from pollen analysis of sediment cores. Successional progress depends

群落结构随时间的变化从沉积物芯样的花粉分析来看是十分明显的。

Influenced by the exterior source input of the detrital matters, U-series dating using aragonite is not suitable to the study of Lake Sugan sediment and a further study is required.2. The isotopes study of precipitation-groundwater-lake water system in Lake Sugan drainage area indicates that in modern climate system, the precipitation in Lake Sugan drainage area is mainly supplied by the water vapor carried by Westerly.

沉积物文石的铀系测年受到外源碎屑输入的影响，在苏干湖并不适用，需做进一步的研究。2、苏干湖流域降水-地下水-地表径流-湖水同位素系统研究表明，现代气候条件下苏干湖流域大气降水主要来源于西风环流携带的水汽输入。

Plumes of sediment from overburden piles enter the Sulu Sea along the northern and eastern coastline of the island.

从覆盖的沉积物羽流进桩沿岛的北部和东部海岸线的苏禄海。

Plumes of sediment from the overburden piles enter the Sulu Sea along the northern and eastern coastline of the island.

覆盖层的一些沉淀泥沙沿着岛的东部和北部海岸线逐渐流入苏禄海中。

In order to select a perfective procedure and protocol for the fine grain OSL dating, measurements of natural IRSL and GLSL signals from a range of modern sediment samples collected from different sedimentary environment, tests of IRSL and GLSL bleaching behaviors for loess fine grains under sunlamp, and comparisons of the equivalent dose determined by different methods have been undertaken, as well as IRSL and/or GLSL dating of more than forty sediments samples taken from late Quaternary deposit strata at different site in North China.

为了选择更合适于中国北方沉积物样品细颗粒OSL测年的实验程序和技术，进行了华北地区不同沉积环境的现代沉积物样品的细颗粒天然IRSL和GLSL信号测量，黄土细颗粒IRSL和GLSL的光晒退测试，不同方法获得的等效剂量值的比较分析，以及取自华北不同地区的40余个晚第四纪沉积物样品的IRSL和GLSL测年。

For the special boundary condition and geometry profile of meandering river, when water going into together with sediment, the former character will change, such as the superelevation of water surface and the difference of pressure in the centripetal direction.

由于弯道特有的几何特征和边界条件，使得弯道中水流产生水面超高现象，从而在向心方向上产生压力差。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。