电动的

Finally, for the energy supply mode of BEV, the key technology and technical direction to be researched are pointed out.

总结了国内外电动汽车的发展现状及趋势，重点探讨了我国纯电动汽车的发展方向及能源供给模式，将我国纯电动汽车发展阶段划分为示范应用期和推广成熟期，分析了现阶段纯电动汽车发展的重点和存在的问题，同时针对纯电动汽车能源供给模式，指出了需要开展研究的技术重点和方向。

Based on the working condition of the tractor, a new type of electric tractor drive system which combines a motor and a gear, and the evaluation index and the calculation method for dynamic performance of electric tractor are suggested; taking an electric tractor drive system as design object, the balance graph of drive-resistance force, climbable gradient under different shifts, and continuous working time are calculation analyzed.

根据电动拖拉机作业特点，提出了一种电动机和变速箱相结合的电动拖拉机传动系统结构方案，并给出了电动拖拉机动力性能和经济性能评价指标以及电驱动系统主要参数的设计计算方法，以基于串励直流电动机的某型号小四轮电动拖拉机电驱动系统为设计实例，计算分析了该电动拖拉机的驱动力-行驶阻力平衡图、不同挡位下的爬坡度以及连续作业时间。

Researches show that the drive force characteristics of the electric tractor drive system based on series DC motor is close the ideal characteristics, the curves are concave, low speed with constant power, and high speed with constant torque; the electric tractor has large working speed under different shifts, but the extensive coincidence speed shows that the variable ratio of the gear is unreasonable; the maximum climbable gradient of this electric tractor is more than 30%, and does not need frequent shift when working for its extensive climbable gradient; there are many influence factors of continuous working time, which the more obvious factors are working speed and working load, the working time increases with the increase of the working speed and working load.2. Simulation researches on the drive characteristic of the electric tractor.

研究结果表明：基于串励直流电动机(来源：ABC21论文网www.abclunwen.com)的电动拖拉机电驱动系统的驱动力特性场接近理想驱动力特性场，其各挡下的驱动力特性是一组下凹的曲线，低速恒转矩，高速恒功率；同一行驶速度下所对应高挡驱动力大于低挡驱动力，这是由电机的调速特性决定的；电动拖拉机各个挡位下具有较广的稳定作业速度范围，但是各个挡位之间速度重合的范围较多，说明所用变速箱变速比与电动机匹配不合理；电动拖拉机最大爬坡度达到30%以上，并且各挡爬坡度变化范围较广，作业过程中不需要频繁换挡；影响电动拖拉机连续作业时间的因素较多，其中作业行驶速度和作业负荷影响最为明显，作业负荷越大，连续作业时间就越短，作业速度越快，连续作业时间就越短。2、电动拖拉机驱动特性仿真研究。

Products are widely used in aviation models, electric toys, household appliances, audio-visual equipment, power tools, camcorders, audio equipment, medical equipment, health care massage apparatus, electric toothbrushes, electric shaver shaving, eyebrow pencil iron, hair dryer areas such as Product sold at home and abroad, and excellent quality of the customer to establish an excellent reputation.

产品广泛应用于航空模型、电动玩具、家用电器、视听设备、电动工具、便携式摄像机、音响设备、医疗器械、按摩保健器械、电动牙刷、电动剃须刨、烫眉笔、电吹风等领域，产品远销国内外，并以优良的品质在客户中树立起了极佳的口碑。

Taking the electric power design institutes over the country as firm technological support,our Company is the specialized manufacturer specializing in material transport products such link electric drive pusher series,aligning roller series,groov eelectric drive plough,wiper,electric drive anti-sticking T-cock,buffer air lock of new generation,electric drive buffer roll,buffer device,double-arm feeder,coal-covered curtain,gathering sill,belt head retractor,sprinkler,winding irrigator and so on,which are widely used in domestic thermal power plant,colliery,harbor,chemical and metallurgical industry.

本公司以全国各电力设计院为坚强的技术作后盾，是专业生产电动推杆系列，调心托辊系列，槽角电动犁式卸料器，刮水器，电动防卡三通，新一代缓冲锁气器，电动缓冲滚筒，缓冲装置，双推杆给料机，挡煤帘，导料槽，皮带头部伸缩装置，洒水器，卷绕冲洗器等物料输送产品的专业生产厂家。广泛应用于国内火电厂、煤矿、港口、化工、冶金等行业。

Green conservation for manual pruning inefficient, labor-intensive, and the motor type Brush Cutter, Hedge machine, turf machine prices high, the high cost of oil, gasoline oil ratio of hard to grasp the high failure rate (especially in summer heat easily pull-cylinder), and high maintenance costs, factory development and production of environmentally friendly energy-saving multi-function portable electric garden pruning machine (ie: portable electric tea light trimming machines), portable electric garden pruning machine (ie: portable electric tea in the pruning Taiwan Karikomi machines), portable electric lawn cutting machine patented product, has passed the provincial Science and Technology Commission of the technical appraisal and quality supervision departments of the country testing, alternative energy Brush Cutter, Hedge machine, improve operating efficiency and reduce the conservation costs, greatly reduced Noise!

针对绿化养护修剪人工作业效率低、劳动强度大，而机动型割灌机、绿篱机、草坪机售价高、油价成本高、汽油机油配比难掌握、故障率高、维修费用高昂等问题，本厂研制生产环保节能型出便携式多功能电动园林修剪机(即：便携式电动茶树轻修剪机)、便携式电动园林修枝机（即：便携式电动茶树中修剪台刈机）、便携式电动草坪修剪机专利产品，已通过省科委的技术鉴定和国家质量监督部门的检测，可替代高能耗割灌机、绿篱机，提高作业效率、降低养护成本，大大降低作业噪声！

Analyze the characteristic and virtues of the electric balancing valve,Analyze the difference between the electric balancing valve and the electric valve,Introduce that the electric balancing valve is a integrative product with the functiongs of dynamical balancing and electrical regulating ,Introduce the application and virtues of the valve in Variableness flowrate system,Introduce the concept of All Balancing in Variableness flowrate system and characteristic of high-effiiciency and energy saving and how to come it true

摘 要：本文分析了动态平衡电动阀的特点及与传统的电动阀相比较的优点；揭示了动态平衡电动阀是区别于传统电动阀的产品，是动态平衡与电动控制一体化的产品；介绍了这种阀的应用及在系统负荷波动较大的变流量系统中的优势，同时提出了变流量水力系统全面平衡的概念、高效节能的特点及实现途径。

In this system,we define the left wheel as the norm wheal,the right is the differential wheel,controlling the benchmark wheel is to controll the speed,another one is to reduce the friction between the wheel and the ground when turning steer.so as to make the wheel purely rolling.

电动汽车电子差速系统中的左轮定义为基准轮，右轮定义为差动轮，控制基准轮转速是为了控制电动汽车的运行速度，控制差动轮转速是为了减小电动汽车转向时汽车车轮的滑动摩擦，尽量使电动汽车车轮运行在纯滚动状态。

By putting forward that its wrong to banned all the electronic bike running on the road, but ought to make homologous administrate measures, normalizing electronic bicycle industry, administrating strictly, performing license plate and driving licence management、drving permission system and constraint insurance system, some basis in theory is explored to promote healthy development of electronic bicycle transit system with reason.

提出不能完全禁止电动自行车上路，而是要针对目前电动自行车交通现状出台相应管理措施，规范电动自行车行业，严格依法管理，实行牌证管理、准驾制度和强制保险制度等，对促进电动自行车交通的合理、健康发展提供一定的理论依据。

The main products include: thermal insulation shutter, electric window protection, FTS ceiling curtain, FSS ceiling curtain, PTS ceiling curtain, FCS ceiling screens, electric, manual shutter, the electric opening and closing of curtains, electric Yang Peng-scalable, manually telescopic Yang Peng, Peng-window electric arm, manual windows Arm Peng, Peng slide window, wood venetian blinds, aluminum venetian blinds, outdoor thermometer screen, such as car sun.

苏州平治遮阳技术有限公司的主要产品有：隔热保温卷帘，电动防护窗，FTS天棚帘，FSS天棚帘、PTS天棚帘、FCS天棚帘，电动、手动卷帘，电动开合帘，电动伸缩阳蓬，手动伸缩阳蓬，电动摆臂窗蓬，手动摆臂窗蓬，滑轨窗蓬，木百叶帘，铝百叶帘、户外百叶，汽车遮阳等。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。