As the economic construction develops and the industrial structure continuously optimizes and adjusts itself, a series of newly professions have emerged, such as electronics, information technology, new materials, etc. And traditional agriculture has been transforming into modernized. At the same time, the production of all trades and all professions has been gradually transforming from labor-intensive to technology-intensive, and the personnel demands from skilled worker or primary professionals to secondary or senior professionals. Just can Higher Vocational Education supply those qualified manpower resources. Since 1990s, Higher Vocational Education in our country has made rapid progress, and it has presented an unprecedented scene of prosperity.
随着经济建设的发展和产业结构的不断优化调整，出现了一系列新兴行业，如电子、信息、新材料等，传统农业也向现代农业的道路转化；各行各业生产由劳动密集型逐渐向技术型转化，由对熟练劳动者和生产初级人才的需求，转化为对中高级应用人才的需求，这种高素质人力资源，需要通过高职教育来提供。90年代以来，我国高职教育有了很大的发展，出现了前所未有的繁荣景象，为社会主义现代化建设事业培养了大批急需的各类专门人才，提高了劳动者的素质。
This series of educational software products mainly include: The New Curriculum Series Autopass teaching films, audio-visual teaching in primary and secondary schools Autopass gifted class courseware allehanda category, Autopass multimedia teaching resources in libraries, in Autopass multimedia network teaching system, easy Qualcomm distance learning support system, in video-on-demand broadcasting system Autopass, Medium Autopass campus network information management platforms.
该系列教育软件产品主要包括：中易通新课标系列教育教学片、中易通中小学电教优类课课件集锦、中易通多媒体教学资源库、中易通多媒体网络教学系统、中易通远程教学支持系统、中易通视频点播广播系统、中易通校园网信息管理平台等。
As a kind of environmental pollution the photochemical smog is formed by the secondary pollution, such as the ozone, the aldehyde class and the oxygen ethanoic acid nitric ether, which are produced by a series of complex reactions of the primary pollutants, the hydrocarbon and the nitrogen oxygen compound.
光化学烟雾是一种环境污染，在化学教材的氮族元素一章中，提到了光化学烟雾这一污染种类，但教材上讲的很笼统，只是简单的说NO和NO2是光化学烟雾污染的主要因素，并没有提到它的成因、危害、事例以及控制的方法。
At the same time, a series of secondary development of products, reduce costs, and satisfy domestic customers.
同时进行一系列的产品二次开发，降低成本，满足国内的客户。
A series of experiments is carried out to test the influence of the type, position and quantity of secondary-air influencing the system on engine performances.
通过试验研究了二次空气的进气形式、进气位置、进气量和发动机工况等对系统净化效果的影响。
Injection pressure control accuracy can be set within ±3% by non-normal series regulating system with a main loop of proportional pressure regulation system and a secondary loop of proportional pressure reduction system.
应用以合型力控制为主环，合型缸座位置半闭环控制为副环的非标准串级控制系统，合型力控制精度可达±1％。
Another news in the secondary housing transactions, the original property units or Fangguansuo stamped, and a series of red tape in 2003 is lifted.
另有消息，在二手房交易中，原产权单位或房管所盖章等一系列繁琐的手续在2003年有望取消。
The characters of CCoAOMT protein such as the constitution of amino acid, Theoretical pI, alienation/proximity water area, secondary structure in Chinese fir were analyzed by a series of bioinformatics software, and then compared with Picea abies, Arabidopsis thaliana and Oryza sativa. The three-dimensional structure of it was constructed by homology modeling, then was analyzed and validated.
利用生物信息学方法分析了杉木CCoAOMT蛋白的氨基酸组成、等电点、疏水/亲水区、二级结构等蛋白质性质，并同欧洲云杉、拟南芥和水稻的蛋白进行了对比，并用生物信息学软件对其空间结构进行了模拟，同时对模建结果进行了结构质量的分析与检测。
The converter can be improved just by exchanging the position of the resonant inductance and the transformer such that the transformer is connected with the lagging leg. The improved converter has several advantages over its counterpart, e. g., the clamping diodes conduct only once in a switching period, and the resonant inductance current is smaller in zero state, leading to a higher efficiency and reduced duty cycle loss. The operation principle of the improved converter and the comparison with the original converter are analyzed in this paper. The effect of the blocking capacitor in series with the transformer or resonant inductance is discussed, and a best scheme is determined. The improved converter is adopted to design the DC/DC converter of secondary power supply in HVDC power system.
本文将谐振电感和变压器交换位置，使变压器与滞后桥臂相连，这样箝位二极管在一个开关周期中只导通一次，同时零状态时谐振电感电流较小，有利于提高变换效率和减小占空比丢失，本文分析改进后变换器的工作原理，并与改进前的变换器进行对比，讨论隔直电容在不同位置对变换器工作的影响，确定一种最佳工程方案。
Each stage of low phosphorus steel production, such as the pretreatment of hot metal, converter steelmaking, secondary refining, especially the flux series for the dephosphorization in the secondary refining and the processes of steel dephosphorization is discussed in detail.
介绍了高磷铁矿选矿脱磷和炼钢脱磷反应机理研究的最新进展，对生产低磷钢的各个环节如铁水预处理，转炉冶炼，钢水炉外脱磷尤其是炉外脱磷的渣系组成及脱磷工艺进行了详细的论述。
The differential transformer secondary windings are connected in subtractive series so that the output is zero at balance.
差功变压器的次级线圈接成反向串联，以便在平衡时输出为零。
After more than 10 years` great efforts, Environmental Education of secondary school in China has formed a series of effective and helpful teaching approaches, which has made environmental education achieve preliminary popularity.
经过十多年的艰苦努力，中国中学的环境教育已达到初步普及，并形成了一系列有效且获益的教学方法。
If your chart has at least two series-and it's not a 3-D chart you can create a secondary value axis.
如果你的图表有两个轴，并且是非3-D图表，你可以建立多个数值轴。
DFG Series isolators is DDZ-III electric modules Instrument rib in a secondary unit, it is the input of 4 to 20 mADC/1~5VDC output signals.
DFG系列隔离器是DDZ-III型电动组合单元组合仪表中的一个辅肋单元，它是将输入的4~20mADC/1~5VDC输出信号。
It owns 33 sets of various machined paper production line, annual productivity 280, 000ton. Main products include one time coated manila paper, secondary coated manila paper, ordinary white paper, grey paper, carton board, wave shaped board, compound grey board, carton board, printing paper and honeycomb board etc., total 13 series and over 100 specifications. The products were sold all over China and Hongkong and Macao areas.
职工人数4850人，其中各类工程技术人员518人，拥有各种机制纸生产线33条，年生产能力28万吨，主要产品有一次涂布白板纸、二次涂布白板纸、普通白板纸、灰板纸、高克重灰板纸、复合灰板纸、牛皮箱板纸、普通箱板纸、黄板纸、瓦楞原纸、高强瓦楞原纸、书写纸及蜂窝纸板等十三个系列一百多个品种规格，产品销全国九十多个省市地区以及港澳等地，连续五年产销率达98%以上。
The following is currently the Deputy welding equipment sales at home and abroad: l CD series capacitor discharge stud welding machine type; 2 ARC series of pull-type bolt-arc welding machine; 3 hanging arc-type welding nuts; 4 insulation nails dedicated welder; 5 shaped nails welding machine; handle 6 aluminum nails Quartet automatic welding machine; 7 programmable automatic positioning of stud welding machine; 8 the automotive industry all-in-one manual welding clamp L-and C-type (frequency or intermediate frequency selectable 9 X-type and C-type welding robot Continental General forceps; 10 desktop point Welder and Welder convex desktop (optional-frequency or IF 11 vertical points Welder (optional-frequency or intermediate frequency 12 seam welding machine (frequency or intermediate frequency optional 13 servo motor-driven pressure on the intermediate frequency welding electrode technology; 14 intermediate frequency transformers; 15 microprocessor controller Introduce SCR welding; 16 for resistance welding electrode cap Automatic repair device; 17 electrode cap center services aircraft; 18 robot welding equipment; 19 rotary table welding equipment; 20 car shell welding robot equipment production line; 21 IGBT inverter DC argon arc welding machine; 22 IGBT inverse Variant AC/DC argon arc welding machine; 23 IGBT inverter air plasma cutting machine; 24 IGBT inverter welding machine manual; 25 inverter welding machine cut one three composite machine; 26 MAG/MIG CO2 gas shielded welding machine; 27 Pneumatic exchange points Welder (25-200KVA 28 three-phase secondary rectification points Welder (340-3160KVA 29; secondary rectification welding seam (160, 200 KVA 30 convex roller brake shoe welding machine; 31 gas security automatic straight seam welding machine; 32 flash butt welding machine (100-160KVA 33 car tubeless wheels flash butt welding machine (400, 630, 800 KVA 34 tubeless wheel hub motor vehicle production line; 35 car shock absorber linkage TIG/MAG welding machines; 36 car shock absorber assembly line; 37 Fully Automatic Shock Absorber Seam Welding Machine; 38 car shock absorberautomatic CO2 MAG Welder; 39 auto driveshaft automatic welding production lines; 40 high-speed railway track flash butt welding machine; 41 other automatic welding equipment and welding production lines turnkey project
以下是公司目前所代理销售的国内外焊接设备：l CD系列电容储能式螺柱焊机；2 ARC系列拉弧式螺栓焊机；3 悬弧式螺母焊机；4 保温钉专用焊机；5 异型钉焊机；6 铝锅手柄四方铝钉自动焊机；7 可编程自动定位螺柱焊机；8 汽车工业一体式手动焊钳L型和C型；9 X型和C型欧式通用机器人焊钳；10 台式点焊机和台式凸焊机；11 立式点焊机；12 缝焊机；13 伺服电机驱动电极压力的中频焊接技术；14 中频变压器；15 微处理器可控硅焊接控制器的介绍；16 用于电阻焊机的自动电极帽修理器；17 电极帽中心服务架；18 机器人焊接设备；19 旋转工作台焊接设备；20 汽车外壳成套装备机器人焊接生产线；21 IGBT逆变式直流氩弧焊机；22 IGBT逆变式交/直流氩弧焊机；23 IGBT逆变式空气等离子切割机；24 IGBT逆变式手工电焊机；25 逆变式焊切三机一体复合机；26 MAG/MIG CO2气保焊机；27 气动式交流点焊机（25-200KVA）；28 三相次级整流点焊机（3×40—3×160KVA）；29 次级整流缝焊机（160、200KVA）；30 制动蹄滚凸焊机；31 气保自动直缝焊机；32 闪光对焊机（100—160KVA）；33 汽车无内胎轮圈闪光对焊机（400、630、800KVA）；34 汽车无内胎车轮毂生产线；35 汽车减震器连杆TIG/MAG自动焊机；36 汽车减震器焊装生产线；37 全自动减震器缝焊机；38 汽车减震器CO2 MAG双枪自动焊机；39 汽车驱动轴自动焊接生产线；40 高速铁路轨道闪光对焊机；41 其它自动焊接设备和焊接生产线
Such as a series of restructuring in the city after the earthquake no major secondary disasters.
同时满足了震后大量住宅的配套要求。
Three means to save energy in the design of series ice storage system, including secondary pump, variable speed pump and chiller by-pass valve, are discussed and compared by simulation and computation in the paper.
介绍了串联冰蓄冷系统设计中泵能耗的3种节能方法：串联泵、变频泵和制冷机旁通。通过对某工程实例的模拟计算，对比分析了这3种方式的节能效果，提出了有效的节能方式
The ZCS condition for lagging switches under wide load range is provided by a secondary auxiliary circuit, and an unbalanced-voltage-division flaw which inheres in ZVS half-bridges in series hybrid DC-DC converter is overcome in the proposed converter, consequently the converter is more practical.
利用副边的辅助电路在宽负载范围内实现了滞后管的零电流软开关，并克服了以前出现的ZVS半桥串联混合式直流变换器所存在的2个半桥分压不均衡的固有缺点，从而使该类拓扑更加实用。
Based on the analyses of cooling methods, cooling configuration and flow path configuration of the first stage blades, the secondary air network system is simulated as a complicated network system which is composed of different throughflow elements connected in series or in parallel.
在分析第一级叶片的冷却方式、结构及二次空气流路构成的基础上，将二次空气系统模化为由大量不同的通流单元以串连或并联方式组成的复杂网络系统，依据网络拓扑关系采用有向图的关联矩阵描述该复杂网络的结构特征。