查询词典 sediments

However, indiscriminate overdevelopment or poor practices can dewater aquifers and cause compaction of sediments, loss of storage space, land subsidence, and degradation of quality.

盲目的过量开采和不适当地应用，能疏干含水层，并导致沉积层的压密，地下水储存空间的减少，地面沉降和水质恶化等。

The factors influencing the magnetic properties of the sediments, and the role of particle size and early diagenesis.

沉积物磁性特征变化的因素是什么？粒度和早期成岩作用的影响是如何体现的？

The grain size of sediments has an important role in the early diagenesis of nitrogen.

在氮的早期成岩过程中，粒度也起着非常重要的作用，沉积物的粒度越细，沉积物中有机氮的分解速率越小，即细粒度沉积物中有机氮的分解矿化速率最小，易于富集有机氮。

As an important component of lake sediments, diatom is of great value for reconstructing paleoclimate and paleoenvironment.

硅藻是湖泊沉积物的重要组成部分，沉积物硅藻硅氧同位素在重建古气候、古环境方面具有重要价值。

The necks of the bottles are then frozen and the corks removed to disgorge the accumulated sediments.

然后将瓶的颈部冻结并拔去瓶口的软木塞除去聚集的沉淀物。

It has been discovered that there is 2.2% dolomite in the sediments through the analysis of X-ray diffraction.

对样品所做的X-衍射矿物物相定量分析表明其中含有2.2%的白云石。

The results show that the bedrock moves 8 m en masse when the epicenter is located near the railway,while the Quaternary loose sediments and groundsill are deformed.The horizontal diaplacement of the Quaternary close to the fault is obviously smaller from above downward,while the rails and groundsill show successive left-lateral crooked deformation for about 25 m.There occur a NE-trending tensional graben and a NW-trending seismic drumlin on the east and west sides of the railway respectively.

结果表明，震中位于铁路线附近时，基岩整体移动，而第四纪松散层和道床则发生了变形，靠近断裂带附近的第四系自下而上水平位移明显减小，而铁轨和道床没有明显的断错，表现为长度约为25m的连续左旋弯曲变形；在铁路东、西两侧形成NE向的张裂陷和NW向的地震鼓包。

A depression in the crust of the Earth, caused by plate tectonic activity and subsidence, in which sediments accumulate.

由板块构造活动和沉陷作用所引起的地壳中的一种坳陷、内中有沉积物堆积的地壳中的一种坳陷。

The colour of eggshell is formed by pigment sediments that are formed in the reproduction cavity.

蛋壳颜色是蛋壳在生殖腔中形成的色素沉积而成。

In order to investigate the relationship between ammonia in the sediment and the physiological and biochemical characteristics of macrophytes, Vallisneria natans L and Elodea nuttallii were planted in the sediments of seven different concentrations of ammonia.

和伊乐藻Elodea nuttallii两种沉水植物的植株鲜物质量的变化、干物质量、根系的活力、过氧化物酶和过氧化氢酶活性，以期明确这两种沉水植物与水体底质浓度之间的关系。

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。