等面积的

In this paper, we show a formula for the arciform area enclosed with a parabola and a straight line by means of two kinds of clever separation and the knowledges of elements mathematics such as the sum formula of infinite decreasing geometric sequence .

文章运用两种巧妙的分割和利用无穷递缩等比数列求和公式等初等数学知识，求出了抛物线与相交直线围成的弓形面积计算公式。

With a registered capital of RMB 10 million,covering an area of 20000 sqm Jiang Zhong GOBO is one of the skeleton enterprises for the construction of Huainan bio-engineering and new medicine industrializational base -"861" Project of An Hui Provincial Government,and is enjoying the following reputable titles as "Hi-tech Enterprise of An Hui Province""Sci-tech Leading Enterprise of Huainan City""Manufacturing Industry Informationization Demonstration Enterprise of Anhui Province""Garden Style Unit of Huainan City" etc.

全国医药百强江中集团的生物制品和外用软膏制剂现代化生产基地，占地面积2万平方米，注册资本1000万元，是安徽省政府"861"行动计划项目―淮南生物工程及新医药产业化基地建设的骨干企业之一，获得"安徽省高新技术企业"、"淮南市科技先导型企业"等荣誉称号。

The ratio of irrigated area to cultivated area,the number of electromechanical wells per each effective irrigational unit,the coefficient o...

结果表明：灌耕比、单位灌溉面积机电井数、土壤有效保水系数、农机动力系数等4个因子可以作为全省农业综合抗旱能力评价的指标；全省农业综合抗旱能力可以划分为高、中、低值区，其中，高值区主要分布在豫中、豫北的大部分地区；中值区比较分散，主要包括中西部低丘、缓岗区，平顶山东部、驻马店及信阳西南部，开封东部-商丘地区，林州-辉县县区；低值区又可分为2个小区，主要包括三门峡、洛阳中西部及南阳地区，信阳中部及东部。

Harbin Lehua wheel key enterprises limited liability company in Changchun Lehua wheels is the company to invest in joint-stock cooperative enterprises, cottage automotive components in Harbin Industrial Park Zone B, which makes car wheels, main products are automobile wheel, car wheels Products such as 5, 12 series of tubeless wheel roller-type, Hafei Automotive products accounted for 70% matching. Harbin Hafei Dongyang Plastics Co., Ltd. mainly produces high-grade car outside ornaments. The company since August 2003 start the construction of a project, the capacity for 100,000 sets of various kinds of high-grade cars outside ornaments production lines, production bumper, radiator grille, panels 77 products Hafei " Italy "," race "," Lubao "and the car" Out Leopard "five models supporting.

据介绍，哈尔滨市平房区目前正在着手规划建设哈尔滨平房国际汽车城，规划建设面积15平方公里，以哈飞汽车工业集团为龙头，以哈尔滨平房汽车零部件产业园区为依托，广泛吸纳国内外资本，提升平房区汽车零部件制造企业的技术水平和科技含量，建设汽车会展中心、汽车研发中心、汽车物流中心、汽车主题公园、汽车贸易区、汽车维修区、汽车配套区、汽车旅馆、汽车赛道以及汽车休闲娱乐广场等，把哈尔滨平房国际汽车城打造成为立足东北三省、辐射东北亚、面向全球的汽车贸易市场和汽车零部件集散地。

The relation between evapotranspiration and leaf area index of different treatments is better with a much linear functional relationship.

通过大型称重式蒸渗仪和小型蒸发器测定秸秆和地膜覆盖下不同灌水处理春玉米地的腾发量，并结合气象、春玉米叶面积及产量等数据比较不同覆盖方式和灌水处理的优越性。

This sequence can effectively remove the effect of magnetic field inhomogeneity and suppress the solvent signal. It can recover the spectral information such as chemical shifts, coupling constants, multiplet patterns, and relative peak areas in inhomogeneous fields.

本文提出了一种基于分子间多量子相干的有效消除磁场不均匀性和抑制溶剂峰的脉冲序列，利用该序列可在不均匀场下恢复化学位移、J偶合裂分和相对峰面积等谱学信息。

Davidii seedlings. Two-month-old seedlings were grown under water supply regimes of 100, 80, 60, 40 and 20% water-holding capacity, respectively, in an open-sided greenhouse.

结果显示，胁迫处理96d后，100% WHC条件下白刺花幼苗的总叶面积、分枝数、基径及最大根长等均最大；80% WHC对幼苗产生了轻度胁迫，随着干旱胁迫强度的进一步增加，幼苗生长显著减小。

The design changes the traditional inefficient and high-cost de-sign in signal acquisition and transmission with using a real-time acquisition of DVI display signals and transferring data through the Ethernet port.The design uses a highly integrated FPGA and high-capacity SDRAM,multiplexing of signal package to transfer display data and control data,and efficient algorithm for gray-scale slice as well.It has the features of low cost,large display area,stable display,and high refresh rate.

该设计改变传统设计中低效高成本的信号采集和传送方式，改用实时采集DVI接口显示信号、通过网口传输数据，采用高集成度FPGA和大容量SDRAM，采用信号包复用技术同步传送显示数据和控制数据及高效率的灰度切片算法等新技术，具有成本低、显示面积大、显示稳定、刷新率高等特点。

Archimedes obtained the parabolic arch, spiral, circular area and volume as well as the ellipsoid, parabolic complex geometry and physical size.

阿基米德求得了抛物线弓形、螺线、圆形的面积和体积以及椭球体、抛物面体等复杂几何体的体积。

The Company and the Northwest Agricultural University and other colleges and universities in eight financing cooperation, already has more than 3,000 acres of plant area, has developed into a set Ratoon flower production, application, garden machinery, road maintenance machinery sales, landscape design and construction of a diversified enterprises.

本公司与西北农业大学等八所高校融资合作，已经拥有3000余亩的种植面积，已发展成为集宿根花卉生产、应用、园林机械、公路养护机械代理销售，园林绿化工程设计、施工的多元化企业。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。