积层

This paper systematically summarized and analyzed general development characteristics of soil profile CaCO3 in Loess hill gully area including source, content, forming-condition, distribution and illuviation- depth of CaCO3, which will have the most important significance for the further studies on global soil and climate change.Soil CaCO3 eluviation-illuviation is a relatively complicate process, soil CO2 is one of the important effect factors, which influences soil CaCO3 through controlling soil pH value and CaCO3 solution capability.

碳酸钙在土壤剖面中淀积的深度和类型是黄土高原土壤发育的重要标志，钙积层是黄土高原土壤发育环境的历史信息库，同时土壤碳酸钙作为土壤无机碳库重要组成，它通过溶蚀后再结晶与大气CO_2之间进行物质交流来影响全球气候变化。

Planosol is mainly distributed in the East parts of both Heilongjiang and Jilin provinces of China.

白浆土自上而下排列分布着有机质层、白浆层和淀积层。

And 19. 4 from the big field with the 1: 1 ratio, and hence the best way for the improvement of planosol is to mix the Aw and B horizons in 1: 1 or 0.5: 1 ratio, meanwhile leaving the Ap horizon undisturbed.

采用人工模拟试验的方法进行白浆土心土混层改良试验结果证明：白浆土心土混层的最佳方案是：在不打乱白浆土肥沃表土层的前提下，把淀积层和白浆层按1∶1或0.5∶1比例混合。

For more than 10 years,through continuous exploring and improving of bamboo and wood pancl,we developed a series of excellent products.including bamboo veneer sheet for all kinds of carriage and container.high-strength double-tunica bamboo templates,and timberwork plywood,etc.

十多年来，企业通过对竹木材胶合板不断探索、改良，开发出一系列性能优异的产品，其中有各种车厢、集装箱用竹材积层板、竹编胶合板、高强度双履膜竹质模板、木材层压板等。

It was found experimentallythat the prediffused silicon surface wascomposed of unreactive deposited HBO21layer——boron silicon glass layer——Si-B phase layer.

实验发现，预扩散后的硅表面由未反应的HBO_2淀积层——硼硅玻璃层——Si-B相层组成。

The results of this study showed that the influencing factors of slope instability for the Luchang Area include rock fall at the west slopes, thick colluvium, sliding planes for dip-direction slopes, headward and sideward erosion of channel, as well as fast seepage of ground water. Two slide planes were recognized from geological profile model. One is potential slide plane on the dip-directional slope, another plane is located in the colluvium near Luchang river sides.

本研究结果显示，鹿场地区地质环境之不安定原因，有西侧岩壁落石、厚崩积土体、顺向坡平面滑动、河道的向源侵蚀和侧蚀、地下水渗流快速等；就所建构地质模型可以了解，鹿场地区可能的滑动面有两部份，一为潜在的顺向坡平面滑动面，另一为在鹿场溪河岸崩积层边坡内的滑动面。

DGGE was used to study 16S rRNA (V3 region) of soil microbial community, the result shows that the structure of soil microbial community changed a lot, when the degeneration of grassland is progressing, especially the structure of soil microbial community in surface lamina; The structure of soil microbial community in podzolic horizon of hypo-surface lamina of the grassland degenerated heavily, is similar to soil microbial community in illuvial horizon of the typical grassland and the grassland degenerated lightly.

重度退化草原亚表层的灰化层细菌群落结构类似于典型草原和轻度退化草原的淀积层的细菌群落结构。

Inside the mixture system, convection and stratiform clouds will act on each other.

在积层混合云系的内部，对流云和层状云区不断地发生作用。

The Ni-S deposits obtained from bath containing sulphosalicylic have higher sulphur contents, obvious amorphous textures and much smaller grain sizes than those from the bath without additive.

结果表明，磺基水杨酸在电沈积过程中既促进了晶核的形成，又阻碍了晶粒的长大，导致Ni-S沈积层的晶粒细化、非晶态化程度和硫含量的提高。

The presence of calcic horizon availed the invasion and residence of A. frigida which is a relatively shallow-rooted plant. In conclusion, the ultimate cause for the succession of A. ordosica community mainly contributes to the changes of soil substrate, especially the formation of calcium carbonate.

钙积层的形成使得较油蒿根系更浅的冷蒿植物得以侵入、定居，而油蒿则逐渐退出，因此，土壤基质变化尤其是土壤钙积层的形成是油蒿群落演替的根本原因。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐