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The isolated SEPIC converter working as a high-power-factor preregulator is studied in this thesis.

中文摘要本文探讨以隔离式SEPIC电力转换器作为AC-DC高功因前置稳压器。

The LT3581 is ideal for many local power supply designs as it can be configured as either a boost, SEPIC or an inverting converter.

LT3581非常适合许多本地电源供应设计，因其可配置为升压、SEPIC或负压转换器。

Taking zero-current switching quasi-resonant SEPIC power converter as controlled object, this dissertation designs an on-line adjustable modification factor α PID controller.

针对零电流开关准谐振 SEPIC 功率变换器为控制对象，设计了一种α因子在线自调整模糊 PID 控制器。

The features of the SEPIC converter has the buck-boost operating mode, positive output polarity, low input current pulsation, and wide input voltage range, suitable for low-power wind generator system in power conversion.

本文研制一独型风发电系统之最大功追踪，所提的系统架构为 SEPIC 转换器，其转换器具备升压，正向输出极性，低脉动输入电，输入电压范围大之优点，适合应用在低功风发电系统电能转换。

The photoelectric detector changes the optical signal after receiving the electric signal, and then produces the binary code through A/D converter. The computer make the fuzzy deal according to the data; Finally, the computer sending out the orders of going forward or backwards shiftily, opening or closing the machine.

光电器件接收到光信号后转换成模拟电压信号，经A/D转换后产生二进制数字量，由微机读入后结合该值变化速率进行模糊处理，最后发出变速前进、变速后退及开机、关机命令，从而控制印刷品或制袋的运动及变速偏移，使彩色套印或分切制袋能准确正常地进行。

Its subject coverage includes: removal of phosphorus from carbon and alloy (including high alloy and stainless) steel baths in the converter; fluxes, flux action; blowing; slag formation and dynamics; slag/melt interaction; slagless refining; continuous processes; treatment of secondary metal melts; effect of treatment methods on final product quality and pr

它的主题涉及的范围包括：转炉中从碳和合金钢液池除磷；助熔剂，助熔作用；吹炼；炉渣形态和动力学；矿渣/溶解交互作用；无渣精炼；连续过程；再生金属融解处理；最终产品质量和性能处理方法的作用；钢特性中磷水平的作用。

Aiming at the deficiency of the conventional electro-hydraulic proportional valves performance,such as response time and response speed,an ultra-high-speed electro-hydraulic proportional valve is proposed,and the structure of an electro-mechanical converter is put forward using eight pieces tegular Halbach magnet array with gaps.

针对常规电液比例阀在响应时间和响应速度等性能上的不足，设计了一种超高速电液比例阀，并且提出了8片瓦型有气隙Halbach磁化阵列型动圈式电-机械转换器。

In tested sample of the converter the using of higher rpm was inadmissible because of unsufficient mechanical durability of the magnetic system, which was built from separate pieces.

在测试的样品转换器的使用较高的转速是不能接受的，因为unsufficient机械耐久性的磁系统，这是由单独的内置件。

New VAI CON ○R stopper system developed by VOEST ALPINE Industrieanl agenbau is a highly effective solution for reducing slag carry over in converter steelmaking. Its development is the result of many years of engineering and operational experience in close cooperation with steel producers.

奥钢联的新型 VAI-CON○R挡渣系统是减少转炉出钢带渣量的高效手段，是在同钢铁企业密切合作的基础上经过多年设计和操作经验的积累而开发成功的。

In order to improve the efficiency of dust-catching,the webby evaporator is added to the converter, also the machinery and performance of the webby evaporator is optimized,so the reclaiming of the gas is increased from 30Nm3/tG to 75Nm3/tG, and the dust capacity is reduced from 250～300mg/Nm3 to 80～100mg/Nm3, the environment is improved,the purpose to save energy and depress cost is achieved.

为了提高除尘效率，在转炉上设计增加丝网脱水器，并对其结构及设备性能参数等方面进行优化设计，使煤气的回收量由30Nm3/tG增加到75Nm3/tG，煤气含尘量由250～300mg/Nm3降到80～100mg/Nm3，改善了大气环境，达到了节能降耗的目的。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48