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Based on a whole survey and detailed analysis in artificial Robinnia pseudoscacia forestland,distribution and characters of dry layer in soil were studied in north Shaanxi Loess Platea.

以人工刺槐林为研究对象，经大量野外调查和数据分析，研究了陕北黄土高原土壤干层的分布状况和分异特征。

Principal component analysis showed total microbial population can be an index to evaluate vegetation restored precess and soil quality.

近年来一些学者[5，6]对黄土丘陵区植被恢复后土壤质量演变进行了研究，取得了较为满意的结果，但大多研究集中于

Explains the application effect and loess's burram's charcteristic on the time's profile of seism 's wave.

说明其应用效果与黄土洞穴在地震波时间剖面中的反映特征。

In order to understand the herbage biodiversity and synusia structure of artificial forest, we investigated herbages under five forest types of Populus simonii, Prunus armeniaca. Prunus davidiana, Hippophae reamnoides and Caragana korshinskii.

调查分析了黄土丘陵区5种人工乔灌林小叶杨林，山杏林，山桃林，沙棘林，柠条林下草本层植物的物种组成、结构特征及其差异。

Compared with the loess hilly and gully regions of northern Shaanxi without using Wote super absorbent and PAM, influence of Wote and PAM on the soil environment and the growth of watermelon had been researched.

在陕北黄土丘陵沟壑区，以不施保水剂为对照，开展了沃特和PAM保水剂对西瓜生长及土壤环境影响的研究。

At full speed, with bridles loose, swords in their teeth pistols in fist,--such was the attack.

腹朝黄土，放开缰勒，牙咬着刀，手捏着枪，那就是当日冲杀的情形。

The variation of structural characteristics for excavated tunnels was studied.

研究了黄土隧道开挖后围岩结构性的变化规律。

Mulched non-textile can preserve soil heat, save water and benefit the plant growth, and it has a better spread prospect in foresting the sloping field and greening the wild region in the Loess Plateau.

无纺布覆盖进行水平沟造林能达到保温和节水作用，促进植被生长，对黄土高原地区坡地造林和荒山绿化具有较好的推广应用价值和实际意义。

The paper thus takes small watersheds as basic study units for optimized eco-productive paradigm of hilly gullied loess region.

因此，本文试以小流域为基础，研究黄土丘陵沟壑区的优化生态-生产范式。

Now, the Chinese government is taking measures for reforesting some of the cultivated land and planting grass to control the loss of water and erosion.

目前，中国政府正通过退耕还林、退耕还草等措施来治理黄土高原上的水土流失。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。