查询词典 sediments

Data of major andminor elements in magnetite, cassiterite, galena and sphalerite from oredeposits within this ore belt suggest that these ore deposits are of skarn,hydrothermal, porphyry and greisen types related to Yanshanian magmaticactivity and that iron in ores came from regional Permian marine interme-diate-basic volcanic rocks whereas partial lead and zinc from Permian geo-synclinic sediments.

矿带中各矿床的磁铁矿、锡石、方铅矿、闪锌矿的主元素和微量元素数据表明，这些矿床是属与燕山期岩浆活动有关的矽卡岩型、热液型、斑岩型和云英岩型矿床；其成矿金属组分中的铁来源于区域晚古生代海相中-基性火山岩，部分铅锌来源于区域二叠纪地槽沉积物。

Gully erosion is an important kind of soil erosion, which is not only a key process resulting in soil degradation, but also a major source of sediments in rivers.

冲沟侵蚀是一种重要的土壤侵蚀方式，它不但是导致土地退化的一个重要过程，还是江河泥沙的一个主要来源[1]。

In the soil, water, modern sediments, hematite, needles is the main iron ore minerals.

在土壤、水体、现代沉积物中，赤铁矿、针铁矿是主要矿物。

This paper discussed the methods of pretreatment for the FCM to detect the heterotrophic bacteria both in freshwater and marine sediments.

论文对FCM测定沉积物中异养细菌的前处理方法进行了探讨，实验同步考虑了淡水及海洋沉积物。

Whereas, reletively deep at the northern slope, and fine in sediments, developed delta deposits and hummocky cross-bedding sandstones of temposite origination in Sangonghe section.

但是在博格达山北坡水体较深，沉积较细，三工河等剖面发育了三角洲沉积和风暴成因的丘状砂岩层。

Using hydrofluoric acid and sodium carbonate as sediments, removal of metal impurities from WPA was studied.

采用氢氟酸和碳酸钠作为沉淀剂，对湿法磷酸进行了脱除金属杂质的试验研究。

Based on the data of hydrography, measured waves, sediments, drilling Quanternary strata, microorganism, sporopllenin, landforms, climate and others in Zhoushan Islands channels, the strait channel effects are systematically studied.

本文根据舟山群岛峡道内分布于虾峙门、马岙、金塘水道和册子水道的水文泥沙实测资料，北仑港、野鸭山和虾峙门口门区的波浪观测资料，北仑电厂运煤码头前沿的第四纪地层钻孔资料、微体古生物鉴定和孢粉分析资料和虾峙门口门区5米浅钻资料，分布于金塘水道、册子水道、马岙三江口海域、虾峙门口门区和杭州湾南部的海底沉积物采样分析资料，册子水道东部野鸭山潮滩和马岙三江口潮滩的沉积物采样分析资料、潮滩地貌的踏勘资料、舟山群岛峡道地区的海图资料以及舟山群岛地区气象气候等其它资料，对舟山群岛峡道效应进行了综合性的系统研究。

Secondly, on the basis of the search for the geography and hydrometeorology in the Chabagou Catchment of Yellow River, which has the excessive and rough river sediments, TOPMODEL which is a Semi-distributed Physically-based Hydrological Model is used for the simulation of the rainfall-runoff and the accordant junction, then calibrates the parameters of the model with the data of

在"1 引言"中：建议围绕TOPMODEL模型在黄河多沙粗沙区干旱流域适用性的研究意义、国内外研究现状、本文的研究思路与预期目标进行改写，并给出有关的主要参考文献。

In addition, the pCO2 in the hypolimnion near the sediment is the highest and has an increasing tendency, which indicates that the degradation of organic matter in the sediments has an important effect on the pCO2 in the hypolimnion.

静水层沉积物附近pCO2最高并且还有持续增加的趋势，说明沉积物中有机质降解是静水层中CO2增加的主要原因，夏季湖底水温较高加快了沉积物中有机质的降解。

The eight major research topics are :①understanding coremantle processes, by deep drilling into a large oceanic plateau in the Western Pacific;②detailed investigation of material circulation during greenhouse Earth, and the transition process from greenhouse to icehouse environments, by drilling Cretaceous to Cenozoic sediments in the Pacific,③understanding the process of continental crust formation by deep drilling into oceanic arc,④Understanding the process of oceanic lithosphere formation by deep drilling of the back arc spreading system,⑤understanding of continentoceanatmosphere linkage, by drilling in the marginal seas and continental slopes of Asia,⑥investigation of the carbon cycle and the deep biosphere in accretionary prisms,⑦investigation of the mechanism and cycles of great earthquakes, tectonics, and mass circulation in convergent plate margins,and ⑧biology of extreme microorganisms living in deep accretionary prism environment.Keywords : Japan IODP Drilling Scientific goals.

其八项研究目标为：①钻探西太平洋洋底高原，认识核—幔作用过程；②钻探太平洋白垩纪—新生代沉积物，详细研究地球温室期间的物质循环及从温室环境到冰室环境的转化过程；③钻探大洋岛弧，认识大陆地壳形成过程；④钻探扩张的弧后，认识洋壳岩石圈形成过程；⑤钻探亚洲边缘海及陆坡，认识陆壳—洋壳—大气圈关系；⑥调查增生楔中的碳循环及深部生物圈；⑦调查汇聚板块边缘大地震周期及形成机制、构造及物质循环；⑧研究生活于增生楔环境中极端微生物生物学。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。