查询词典 sediment-covered

In the third area, Pb2 is gradually supersaturated in solution with the increase of pH value, so the Pb2 is deposited as sediment. As a result, the processing of wulfenite leaching by sodium hydroxide is carried out. Additionally, feasibility of the processing of wulfenite leaching by sodium hydroxide is proved, but Pb(superscript 2+) reacts with hydroxyl to form complexes which is leached into solutions. So removing the complexes lead from solution is needed.

通过对Pb-Mo-H2O系的热力学分析，苛性钠分解彩钼铅矿在一定的pH值下是可行的，但在碱分解过程中Pb(上标 2+)与羟基形成了配合物，主要是以Pb3的形式存在而大量进入溶液，因此，尚需进一步除铅。

Analytical results showed that the upper clear liquid of pyrolysis oils was mainly consisted of water-soluble substances,such as phenol,cresol,xylenol,sugars,hydantoins,morpholines,pyranones and pyridine derivatives compounds,etc.,while the lower sediment was mainly insoluble or hardly water-soluble substances,such as the big substituent phenolics(the number of substituent carbon atoms of which is greater than or equal to 2),aryl phosphate esters,fatty acid esters and nitrile compounds,and so on.

研究表明，热解油上层清液主要是一些较易溶于水的物质，如苯酚、甲酚、二甲酚、糖类、乙内酰脲类、吗啉类、吡喃酮类和吡啶类化合物等；而下层沉淀则主要为不溶或难溶于水的物质，如大取代基酚类（取代基碳原子数≥2）、磷酸三芳基酯类、脂肪酸酯类和腈类化合物等。

She scooped out the yeasty sediment s.

她将发酵的沉淀物舀了出来。

Keywords: Watershed;Soil erosion and sediment yeild; Scale transfer; Models

中文关键词：流域；侵蚀产沙；尺度转换；模型

The large-scale volcanic activities during fault-depression period and the strong geothermal field resulted from the huge thick and stable sediment during depression period sped up the transformation of hydrocarbon source rock and resulted in the formation of large amount of abiogenetic gas.

断陷期大规模火山活动，坳陷期巨厚而又稳定的沉积产生的强地温场加速了烃源岩的转化，并有无机成因气大量产生，营城组沉积时数万平方千米范围的火山喷发，形成了爆发相和喷溢相叠合的有利相带，发育了具有孔隙和裂缝双重介质中酸性火山岩储集体，相对独立的火山岩体在巨厚的沉积盖层下形成独特的圈闭类型。

According to sources of the sediment the deep-water sediments can be divided into the allochthonous and the autochthonous types.

深水沉积根据沉积物来源可以分为深水异地沉积和深水原地沉积。

The allochthonous means deposition through cross transportation (corresponding to vertical settlement of sediment) in deep-water of the sea or the lake.

深水异地沉积是指海洋深水区经横向搬运而形成的沉积，它是相对于垂直降落沉积作用形成的原地沉积而言的。

The magnetic intensity in the sediment from the Changjiang River mouth is obviously higher than that from the Huanghe River mouth, especially in terms of magnetic susceptibility, anhysteretic remanent magnetization and saturation isothermal remanent magnetization.

对采自长江现行主河道和黄河入海口处的表层沉积样品进行了环境磁学参数的测量和对比研究。

The amounts of Limnodrilus hoffmeisteri with high pollution resistibility increased gradually from Baihe to Huacao section, and reached a peak in Huacao section; species from Annelida, Mollusca were not found in Beixinjing and Wuninglu sections due to heavy sediment pollution; species from Oligochaeta were found again and had certain numbers in Zhejiang road section as the result of the effect of courterflow of the Huangpu River.

从白鹤至华槽断面，高度耐汙霍甫水丝蚓数量趋於增加，並在华槽断面形成明显数量高峰；北新涇、武寧路河段底质汙染严重，环节动物、软体动物消失；浙江路断面受黄浦江&逆流&，寡毛纲动物再度出现，並形成一定数量。

This thesis used Ultrasonic Assisted Extraction and established pretreatment method for PBDEs and PBBs in both tea leaf and aquicolous propagation, and also optimized Soxhlet Extraction conditions on analysis of PBDEs and PBBs in sediment. This thesis consisted of five chapters.

采用超声辅助提取法作为提取方式，建立了适合于茶叶、鱼类和贝类样品中PBDEs与PBBs同时分析的样品前处理方法；优化了索氏提取法在沉积物样品中PBDEs和PBBs同时分析的条件。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。