以...为基础

After graduating, he worked for a year in a company that assisted American companies operating abroad. In 1985, Obama became a community organizer in Chicago with a church-based group organizing job-training programs in poor neighborhoods to help alleviate crime and combat high unemployment.

毕业后，他在一家协助美国公司海外运作的公司工作了一年。1985年，奥巴马成为了芝加哥一家以教会为基础的社区管理者，专门为贫困的街坊邻居组织工作培训来降低犯罪率，增加就业率。

After the fatigue curve with 50% reliability and a few fatigue test results of a crane element have been known, the method, namely JFKC method, in this paper can be used to get the fatigue limiting stress distribution of this crane element quickly, based on the Miner Hypothesis and.

本文在已知某种起重机零件可靠度为50%的疲劳曲线并有了该种零件的少量试件的疫劳试验结果的条件下，以作者提出的修正的曼耐尔假设和抛物线假设为基础，提出了起重机零件疲劳极限应力分布的快速测定法——JFKC*法。

The observational equations have been derived using the three methods above which are based on high-low SST and low-low SST observational data respectively, at the same time, the shortages and merits of these three methods are analyzed. 3The problem of gravity field recovery can be attributed to the solution of over determined system of equations.

本文分别以高低卫卫跟踪和低低卫卫跟踪观测数据为基础，导出了基于上述三种方法的观测方程，并分析了它们的优缺点。3重力场恢复最终归结为超定线性方程组的求解问题。

Hydroxy-2,3-dihydro-4-quinolone is synthesized by the basic material of 4-nitrochloro-benzene. It has investigated the routes, conditions and purifies methods in this paper, which provides bases to lucubration and industrialization. This study belongs to the field of medical intermediates.

本文以4-硝基氯苯和丙烯酸为基础原料合成6-羟基-2，3-二氢-4-喹啉酮，并对6-羟基-2，3-二氢-4-喹啉酮的合成条件和纯化方法进行了实验研究，为后续的深入研究和工业化生产提供依据。

Authorized by Beijing Government, China Beijing Equity Exchange is the pioneer and luminary equity transaction institution in China. It provides enterprises with comprehensive and professional service for property rights exchange and other equity transactions.

北京产权交易所是经北京市人民政府批准设立的综合性产权交易机构，作为北京市建设要素市场的主体单位，是以企业产权交易为基础，集各类权益交易服务为一体的专业化市场平台。

The main p-art of this article introduces the model machine of microcomputer system for computing shooting track.

文中的主要部份介绍了以TP801单板机为基础研制的弹道计算机的模型机，这一研制成果为把微型机应用于坦克火控系统探索出一条道路。

L Marl - Calcareous clay-based soil that is cold and adds acidity to the wine.

l 泥灰-寒冷的以石灰性黏土为基础，可以为酒增加酸性的土壤。

Aimed at actual thermal system, a new distribution method for feedwater added enthalpy was deduced, which based on mass unit matrix analytical method.

以质量单元矩阵分析法为基础，再热机组的实际热力系统为研究对象，全面运用数学推导，导出了给水焓升分配的新方法。

Chengdu Hi-tech enterprises of small and medium knowledge-based model of staff training Abstract Knowledge and information in the production, distribution and use of knowledge economy based on the context, knowledge, science and technology to high-tech enterprises of the future direction of economic development.

成都市中小型高新技术企业知识型员工培训模式的探讨摘要在知识和信息的生产、分配和使用为基础的知识经济时代的背景下，以知识、科技为先导的高新技术企业代表了未来经济发展的方向。

The advent of the Medline search and other Internet-based services has helped them, but it is still difficult to see clearly into the dark corners of specialization.

以英特网为基础的服务能够为编辑提供一些帮助，但是，在专业化的黑暗角落中看清实质问题仍然是困难重重。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。