查询词典 sediment-covered

Result of research reveals that engine power drops asthe gum content increases when content of gum exceeds 20 mg/ 100 mL. Road driving anaogue test shows thai long time operation with high gum content gasolene will cause greal amount of asphalt like sediment depositing on internal surface or backof engine indution gas passage, muffler...

研究结果表明，胶质含量超过20mg／100mL时，随胶质含量的增加动力性下降。120h道路模拟试验证明，长期使用高胶质汽油会造成进气管、进气道和进气门背部生成大量沥青状沉积物，严重时影响汽油机的正常工作。

And the temperature of producing gelatin and sediment is up to their types ,thicknesses and heating speeds.

而发生这种凝胶和沉淀的温度主要取决于他们的类型、浓度和加热速率。

While in geognosy practicality work, human beings discovered and accumulated a lot of extraordinary monstrous sediment note and phenomena, and it's hard to explain those phenomena by the foregone geognosy knowledge.

可是在地质学的实际工作中，发现并积累了许多非常怪异的沉积记录和现象，用已知的地质学知识无法合理地解释那些现象。

Nowadays,the properties of sediments changed by bioturbation have been concerned by International Geosphere and Biosphere Plan, especially the problems about the bioturbation and hydrodynamic coupling led to the tidal flat sediment flow differences.

如今，生物扰动对潮滩沉积物性质的改变已越来越引起国际地圈、生物圈计划的关注，尤其是生物扰动和水动力的耦合作用影响潮滩沉积物渗流差异问题。

In a typical mountain-building episode, a thick section of sediment s, deposited in a geosyncline along the margin of a stable block, is crumpled.

在一个典型的造山期中，沿着一个稳定地块边缘的地槽中沉积的厚厚的沉积物遭到揉皱。

Characteristics of gold polygenetic compound deposits in the region are demonstrated. The new viewpoint is put forward that the gold deposits in the region belong to "sediment- metamorphism-fluid superposition reconstruction" deposits which are formed by fluid superposition reconstruction in the Diwa stage on the basis of preliminary enrichment in the fore-geosyncline,geosyncline stage.

论证了区内金成矿的"多因复成"特征，提出了区内金矿是在前地槽、地槽阶段金初步富集的基础上叠加了地洼阶段流体成矿作用的"沉积-变质-流体叠加改造矿床"的新观点。

The study has shown:(1) With increasing sediment depth and the woody giblets, the total organic carbon, the extraction of benzene , the total humic acids and the unhydrolyte are enhanced, while the hydrolyte is decreasing.(2) According to the GC-MS analysis, n-alkane,n-alkan-2-ones and n-alkanones are composed mainly of long-chains,such a result is thought to be characteristic of a herbaceous input from 2300a.B.P. n-alkanones exist in the samples may be considered as the evidence of microorganisms activity.(3) It is showed that the lipids is more sensitive to the climate change than the floristic. The proxy of the pollen spore of the peat stratum is different from the normal environment proxy. It is one of the main reasons that the sensitivity difference of the bog vegetation reacting to the climate isn't accordant with the log of the fat molecule fossil and biology fossil.(4) The transformation of the peat organic carbon is under the influence of temperature,acidity,organic material constituting, etc, and it showed the up-trend with the depth. In the short-term scale, the conversion of the peat organic carbon is effected by seasonal water,regional climate and vegetations; while in the long-term scale, it is controlled mainly by the climate.(5) According to the comparing the orderliness of organic compound,vegetation giblets with the depth to the characteristics of the peat molecule fossil with the section, in the development of this peatmire, 1500a B.P（210cm）is regard as the borderline of the late Holocene, the keynote of the front period is warm with several cold fluctuations, and the trend of the back period is dry and cold although there were several fluctuations.

研究表明：（1）随深度的增高及植物残体中木本残体的增多，总有机碳、苯萃取物、总腐植酸、不被水解物含量逐渐增高，而易水解物含量减少；（2）GC- MS分析显示，正构烷烃，直链烷基2-酮和正烷醇均以长链组分为主，揭示了该泥炭柱剖面2347a.B.P的母源输入以草本植物为主；甲基酮类和短链正烷醇的存在是微生物活性很大的生物证据；（3）通过有机分子标志物与孢粉、植物残体等指标的对比研究表明：脂类化合物对气候变化的反映要比植物种灵敏得多，不同沼泽植物对气候变化的敏感性的差异是脂类分子化石记录与生物大化石结果很难一致的主要原因之一；（4）泥炭有机碳的转化受到温度、酸度、有机物质组成等很多因素的影响，短时间尺度，泥炭有机碳的转化受季节性降水、地方气候和植被等因素的影响；长时间尺度，泥炭地有机碳的转化，受气候条件控制；（5）总结泥炭分子化石特征、泥炭有机质各组分含量及植物残体组成随深度的变异规律，分析结果显示该泥炭地层形成过程中，1500a B.P（210cm）可作为划分前后晚全新世的界线，前期的基调是气候偏暖，但又有几次偏干冷气候的反复，后期气候以干冷为主，其间虽有几次上升波动，但整体趋势不变。

Based on analyses of Loss-on-Ignition,carbonate content and sediment characteristics,the authors reconstruct the climatic and environmental evolution of the Gahai Lake area since the Late Glacial period.

通过对尕海沉积物烧失量和碳酸盐含量以及岩性变化分析，重建了尕海地区晚冰期以来的气候环境演变。

This paper deals with the properties of glomeration, incipience and deposition of suspended sediment form Guan he estuary by means of annular tank tests with the current driven by differential rotation of the lids (simulating the natural seawater current).

利用环形水槽及现场原沙，在动水絮凝条件下探讨了自然情况下灌河口悬沙的起动及落淤状况，建立了泥沙平衡浓度与流速的关系，并由此得到某种沙的不淤流速值。

This time we samplinged and analyzed the river-water and bottom sediment in the goldfield of Shaanxi Tongguan which is the representative goldfield in China. We not only evaluated the situation of heavy metals pollution arose by mining, but also analyzed the distribution regularity about heavy metals pollution in the space and the correlation among heavy metals.

本次对我国的典型金矿区—陕西潼关金矿区河流中的河水和底泥进行采样分析，评价采矿导致的该地区重金属污染状况，分析重金属污染的空间分布特点和几种重金属之间的相关性，进一步提出金矿区河流重金属污染的治理方案。

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％。