黄土

The stochastic seismic response characteristics of the inequable loess stratum were analyzed by using the mode shape decomposed method.

用振型分解法对黄土场地地层的地震反应进行了分析。

Leguminosae and grass are not only the main material in the forest and grass intercropping, but also a dominant p...

在黄土高原生态环境建设中，草本植物不仅是林草间作的主要材料，甚至在有些立地条件下担当着主栽品种的角色。

Leguminosae and grass are not only the main material in the forest and grass intercropping, but also a dominant part of planting in some sites of the ecoenvironmental construction in the Loess Plateau.

在黄土高原生态环境建设中，草本植物不仅是林草间作的主要材料，甚至在有些立地条件下担当着主栽品种的角色。

Accumulation and distribution of available sulfur (0.15% CaCl2 extract) in the limy soil profile with a 15 year fertilization experiment were studied.

对设在黄土高原旱地黑垆土上不同N、P配比与用量的长期定位试验土壤剖面有效硫的分布与累积进行了研究。

This is a stretch of the lithoid mountain exposing from the loess formation as thick as a hundred meters, where the ancient story of the strata evolution and vicissitudes has been recorded; the layers of annual rings have witnessed the tremendous damages brought by the soil erosion to the Loess Plateau.

这是一段厚达百米的黄土层中所暴露出的石质山体，这里记载着地层演变的古老故事和历经的风雨沧桑，一层层的年轮上留下的就是水土流失带给黄土高原巨大侵害的历史。

The resource and the content of CaCO3 in loessial stratum in loess are mainly discussed.

在深海沉积物和陆地黄土沉积中，CaCO3对第四纪环境变化的显示都是非常清楚的。

The people of Yenan live in cave houses carved into the slopes of dry loessial hills.

延安人住在干燥的黄土山坡上挖的窑洞里。

With increasing of human being's activities on farming and watering, it has great theoretical and practical significance on how to utilizing purification function of loessial soil to protect groundwater from polluting, which is the basis of building item of this paper.

在人类农事活动和水事活动日益增强的情况下，如何利用包括土壤层在内的黄土地层自身的净水作用，保护地下水不受污染，具有重大的理论和实际价值，这是本论文的立项依据。

With increasing of human beings activities on farming and watering, it has great theoretical and practical significance on how to utilizing purification function of loessial soil to protect groundwater from polluting, which is the basis of building item of this paper.

在人类农事活动和水事活动日益增强的情况下，如何利用包括土壤层在内的黄土地层自身的净水作用，保护地下水不受污染，具有重大的理论和实际价值，这是本论文的立项依据。

There is representative meaning to researching the action of Cr and As in loessial soil.(3) By experiments the paper reveals purification mechanism and ability and its influencing factors of soil to Cr and As.

2分析了由于农事和水事活动所发生的土层入渗水中的污染元素，确定了毒性强、数量大、易迁移的铬、砷作为主要研究对象，研究其在黄土类土中的行为作用有代表性意义。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。