等面积的

The paper puts forward the mechanism of combined waveform and computation of a SPWM area center equivalent.Harmonic of double pole SPWM waveform is analyzed in this paper.

文中给出了按照面积中心等效法合成SPWM波形的机理以及面积中心等效算法，并对双极性面积中心等效法生成的SPWM波形进行了谐波分析。

Founded in 1992, now covers an area of 13800 M2, building area of 5160 M2, the company is strong in science and technology , Advanced technology, equipment, production mill - Screen powder machine - Mixer - granulators - dryer - conveyor series of professional mechanical products manufacturers, widely applicable to the pharmaceutical, food, chemicals And other industries.

公司创建于一九九二年，现占地面积13800M2，建筑面积5160M2，公司科技力量雄厚、工艺先进、设备齐全，是生产粉碎机--筛粉机--混合机--制粒机--干燥机--输送机等系列机械产品的专业厂家，广泛适用于制药、食品、化工等行业。

In the research, 28 characters including energy, informationization measure, fractal dimension, hue, cb, color moment, disease spot area, rotundity, figure factor, and others were extracted, and four approximate features were selected from 28 primordial features. The results indicated that the precision of the three kinds of maize disease recognition was higher than 90%.

研究中提取了墒、相关信息测度、分形维数、H值、Cb值、颜色矩、病斑面积、圆度、形状因子等28个特征向量，利用遗传算法优选出H值、颜色矩、病斑面积、形状因子等4个独立、稳定性好、分类能力强的特征向量，应用费歇尔判别分析法识别病害，准确率达到90%以上。

Industrial Park covers an area of 286.143 acres, 10 factories (a total construction Area of 98,721 square meters), one Comprehensive building (construction area of 5,271 square meters), two dormitories (a total construction area of 8252 square meters), one research and development center, activity centers, catering and other subsidiary facilities.

宝久实业·北京隶属于江苏宝久实业有限公司，由香港越明贸易有限公司投资兴建的高新技术企业，注册资金2980万美金，工业园占地面积286.143亩，建有厂房10栋（总建筑面积98721㎡）、综合楼1栋（建筑面积5271㎡）、宿舍楼2栋（总建筑面积8252㎡），另配有研发中心、活动中心、职工餐厅等附属配套设施。

The First Law of thermodynamics and exergy analysis method were used to construct factors such as coefficient of performance , exergy efficiency and exergy index according to the AHT combined Carnot cycle model established. Aimed at the insufficient of the classical thermodynamics analysis method, the optimization relationships between the specific heating load and operating parameters, and between SHL and COP, was reasoned out using the Finite Time Thermodynamics method according to the characteristic of investment and capacity of AHT, and endo-reversible combined Carnot cycle model. Hence, the rationality of the energy utilization and the economic index, which related to the total heat transfer area, were both taken into account.

首先利用热力学第一定律分析法和〓分析方法，按照建立的吸收式热变换器理想联合卡诺模型，构建包括性能系数、热力学效率、〓效率、〓指数在内的吸收式热变换器热力学评价体系；然后针对经典热力学分析方法的不足，根据热变换器的功能、投资等方面的特点，按照内可逆联合卡诺模型，利用有限时间热力学理论方法，导出了吸收式热变换器比供热率与操作参数、比供热率与热力学性能系数的优化关系，从而使优化结果兼顾了系统用能的合理性和与总传热面积相关的反映设备投资回报的经济性指标。

The coaxal coherent chart of irrigation water puts allfactors into one chart:channel transport capacity, field water consumption strength ,benefit area and irrigation time.

灌溉用水合轴相关图把渠道供水能力，田间耗水强度，效益面积、灌水时间等因素融于一体，按照一定的关系以曲线或直线组绘成合轴相关图，通过该图即可初步设计渠道流量，选定灌溉面积，也可确定轮灌周期、轮灌面积等。

County will Hengxin Wood Industry Co., Ltd. in March 19, 2003 to set up registered capital of 2,000,000 yuan, the company was named in 2004 in Sanming City municipal agricultural industrialization leading enterprises; company is located in the northern suburb of Le-County Industrial Park , the company covers an area of 46 acres, plant area of 9000 square meters; company business scope: processing and marketing of small furniture, wooden products, export the enterprise production or processing of various types of wooden furniture such as small, the main products have: CD racks, folding chair, dining car, shelves, folding tables, etc. all kinds of small furniture, and operates a variety of decorative panels, integrated panels, wood and other decorative materials.

将乐县恒鑫木业有限公司于2003年3月19日成立，注册资本200万元，2004年公司被评为三明市农业产业化市级龙头企业；公司位于将乐县北郊工业园区内，企业总占地面积达46亩，厂房面积9000平方米；公司经营范围：加工、销售木制小家俱系列产品，出口本企业自产或加工的各类木制小家俱等，主要产品有：CD架、折椅、餐车、货架、折桌等各类小家俱，并经营各种装饰板、集成板、木线条等装饰材料。

We are strengthening various means of service to improve the quality and function of our service by the effort of our 50 experienced and reliable staff .our 15 branches are spreading over in china main port and inland city including tianjin,qingdao ,shanghai,shenzhen, changchun etc .upon 30 trucks we own carrying heavy cargo and container and 5000 m2 warehouse we have and on good terms with shipping company inshore and onshore ,we have established service flat form with high quality and diversity in chinese main port .

公司现有50余名爱岗敬业、专业精干、经验丰富的员工队伍，在天津、青岛、上海、厦门、深圳、武汉、沈阳、长春、哈尔滨等主要的港口和内陆城市设立了15个分支机构，自有集装箱及重大件运输车辆30余台，仓库面积5000余平方米，注册资本800万元，资产1500余万元，并与沿海及内河的船运公司、铁路形成了良好的互动合作关系，初步形成了以沿海主要港口为基地，延伸腹地的完善的、多元化的、高质量的服务平台。

The submodel quantitatively characterized the impact of genotypic differences on sowing date and sowing rate by tillering ability and percentage of final spikes to effective tillers, and the suitable pre-winter leaf number on main stem in relation to yield target is quantified according to the principle of determining spike number from yield level and leaf number from spike number.

其中，播前方案设计的知识模型包括产量目标，品种选择，播期确定，基本苗及播种量的计算，氮、磷、钾肥料运筹和水分管理；动态调控指标的知识模型包括适宜生育期，穗分化进程，群体茎蘖动态、叶龄动态、叶面积指数动态和干物质积累动态等生长指标动态以及有效叶面积率、高效叶面积率和粒叶比等源库指标。

Of the importance of the Square of 8 and 9 grid relationship, Schwaller says, These two lengths, 8 and 9, are related to musical harmony. This is the tone in music and also the ratio between the diameter of a disk and the side of a square of the same surface area. The sum of 8 and 9 is 17, the famous number of Jabir [the famous Arabic alchemist of the 8th century C.E.].

对8方图和9方图的重要关系，古埃及考古学家，金字塔研究专家史沃乐先生说：这两个长度，8和9，和音律和谐规律是相关联的，它们是音乐中的调和与增强，也是一个圆的直径和等面积直角方形的边长的比率。8和9的和等于17，它是一个著名的阿拉伯术士在公元8世纪所使用的一个著名的数字。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。