This paper presents a novel zero voltage switching full bridge three level converter.
提出了一种新型的零电压开关全桥三电平直流变换器。
Methods: three factor and three level orthogonal test was used to optimize the SFE conditions.
方法：通过三因素—三水平正交试验法，对萃取条件进行了优化选择。
A momentum transfer of a moving three level atom interacting slantingly with a standing wave laser field is analysed.
分析了一个运动的三能级原子与一个驻波激光场在斜交相互作用时的动量传递行为。
Through deducing the Green's function in a three level layer soil by complex image method, application of this method is clarified.
通过运用等值复数镜像法求出水平三层土壤中的格林函数，阐述等值复数镜像法的应用。
The proper reasons for the unbalance are the unique structure of NPC three level converters and the parasitic inductance in the circuit.
并指出电压不平衡是由于NPC三电平的特殊结构和电路中的杂散电感造成的。
The fifth part Orientate and go on detailed analysis and demonstration from three level, seven function foundation of in the center to the city of Wuhan.
第五部分从三个层次、七个功能中心的建立对武汉城市定位进行了详细的分析与论证。
Completing a significant campus crossroad, the facility connects arts teaching, studio, performance and workshop facilities to the campus via a three level atrium.
该设施使重要的校园十字路口更加具有意义，通过三层中庭将艺术教学、工作室、表演和车间设施与校园连接起来。
This paper presents a novel zero voltage and zero current switching (ZCS) PWM push pull three level converter in which the voltage stress of switches is input voltage.
本文提出了一种新型的零电压零电流开关pwm推挽三电平直流变换器，其中开关管的电压应力为输入电压。
The relation between subject and object Included relation of practice, relation of perceptual and relation of thinking as three level respectively. The former was the foundation.
主体与对象的关系包括实践关系、感性关系和思维关系三个层次，其中实践关系是感性关系和思维关系的基础。
The results show that quantum entanglement of all states from the coherent state to number state interacting with a cascade three level atom can be displayed by using the binomial field property.
结果表明，利用二项式光场的特性，可以揭示从相干态到数态之间的所有态光场与三能级原子相互作用时的量子纠缠性质。
The hotel is set on three floors. There's a bar and cafe at ground level.
旅馆有三层楼。底层有个酒吧和咖啡厅。
Ten years ago, when the first NEWSWEEK list based on college-level test participation was published, only three of the top 100 schools had graduating classes smaller than 100 students.
十年前，《新闻周刊》发布了第一份基于大学水平考试参与度的排行榜，当时排名前100位的学校中，只有三所学校的毕业班学生人数少于100人。
After three years of working in a petrol station and doing unpaid work I still hadn't managed to get an entry level job.
在加油站干了三年无薪工作之后，我仍然没能找到一份入门级的工作。
Nearly three-quarters of the first group guessed that Mr.Williams worked at a managerial level, while only 38.5 percent of the second group thought so.
第一组中有近四分之三的人认为威廉姆斯先生从事管理层工作，而第二组中仅有38.5%的人这样认为。
Nearly three-quarters of the first group guessed that Mr. Williams worked at a managerial level, while only 38.5 percent of the second group thought so.
第一组中有近四分之三的人认为威廉姆斯先生从事管理层工作，而第二组中仅有38.5%的人是这样认为的。
According to a study by Australian National University, Australian children and Chinese children have the same level of eyesight before they start school, but once they enter primary school, Chinese children only spend about an hour a day outside, while Australian children spend three to four hours each day in the sunshine.
澳大利亚国立大学的一项研究显示，澳大利亚的孩子和中国的孩子在入学前的视力水平相同。但是一旦他们进入小学，中国的孩子每天只会在户外度过一个小时，而澳大利亚的孩子每天在阳光下待三到四个小时。
Ideally, Reeves said, he would convert the three-level control center into a new home.
理想状态下，李·维斯表示，他会把三层楼高的控制中心改造成他的家。
Strong, slender and still only 58 years old, Kanzius bought a 4, 000-square-foot, three-level white stucco home on Sanibel Island.
身材硕长而健壮，年仅58岁的肯兹尤斯在森尼贝尔岛上买了占地4千平方公尺，有一栋三层白色楼房的家园。
A method of keeping neutral point potential balanced based on three-level SPWM had been brought forward, which can improve output waveform and decrease the possibility of IGCT's over-voltage.
提出了一种基于三电平spwm调制的中点电压抑制方法，在改善输出波形质量的同时，有效的降低了IGCT过电压的危险。
The hillside topography impacted the design and inspired a three-level planning approach used to mimic the natural form of the hillside.
山坡地形影响设计，并且启发三层楼的规划方法，用于模拟山坡的自然形状。
Two methods to control the neutral point potential are proposed in this thesis which can solve the neutral point potential problem owned by three-level inverter.
针对三电平逆变器固有的中点电位平衡问题，本文提出并分析了两种能控制中点电位平衡的控制策略。
A three-level timber veneer and polished metal wall links the entry with the cigar bar, which commands views to the Canal and the Marina.
三个层次的木材贴面和抛光金属墙的联系与雪茄吧，它的命令的意见，运河和码头入境。
The characteristics of rare earth doped fibers and the principle of fiber amplifier with three-level system are described.
简述了稀土掺杂光纤的特性，以及三能级光纤激光放大的基本原理。
An experiment prototype of 1.5kw three-level inverter has been manufactured, which is driven by "based on FPGA vector generator". We finally got ideal wave in this experiment system.
本文最后搭建了一个基于多电平矢量发生的逆变实验系统，制作了一台用矢量发生器驱动的1.5KW的多电平变换器实验样机，在样机上得到了较为理想的波形。
The pattern preparing system for three-level loop tufting machine is introduced, including pattern design and pattern conversion.
介绍了三圈高地毯簇绒机的花型准备系统，包括花型设计和花型转换两大部分。
In order to create pattern on carpet, this paper developed a jacquard control system for three-level loop carpet tufting machine.
为了在毯面上形成花型图案，设计和开发了三圈高地毯簇绒机提花控制系统。
From a three-level model, we analyse the origins of the observed dnamics.
从一个三能级模型出发，分析了上述过程的来源。
This paper proposes a new strategy for balancing the neutral point voltage in the process of the three-level inverter vector controlling.
本文主要研究三电平逆变器在电压空间矢量控制过程中中性点电压平衡的控制方法。
The neutral-point balancing is an inherent problem of the three-level NPC inverter.
中点电位平衡问题是三电平npc逆变器的一个固有问题。
The neutral-point balancing is an inherent problem of the three-level NPC inverter.
中点电位平衡问题是三电平npc逆变器的一个固有问题。
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